Best Answer - Chosen by Voters
Substitute Teacher: Dress conservatively like a teacher (hair up in a bun, skirt and sweater, glasses on a chain around your neck). Then, stick a paper airplane in the back of your hair, put a note that says "Kick Me" on your back, cover your hands and face with chalk, and put chalk eraser prints on your clothes. Attach staples and paperclips to your clothes, with broken pencils sticking out here and there.
Deviled Egg: Wear all white. Paint or attach a yellow circle to your stomach. Wear devil horns and carry a pitchfork.
Frank Einstein: Get a Frankenstein mask and attach an Albert Einstein wig, spray the wig with green haircolor, wear a lab coat with pocket protector, pens, etc.
Kill the Ump: Wear an umpire outfit. Rip some holes in the clothes. Place fake scars, bruises and blood where skin is showing.
Runaway Bride: Wear a bridal gown and sneakers.
Castaway: Take an old pair of khaki pants and tear off the legs to create shorts. Wear a dirty white T-shirt, beard and long hair. Carry a volleyball with red handprint and face.
Grim Rapper: Wear a grim reaper costume, but accessorize with baggy pants, gold teeth, thick gold chains and a radio on your shoulder.
Static Cling: Wear any kind of mismatched clothes, pin one pant leg up, pin dryer sheets on you as well as socks, small towels, etc., and then use hair gel to make your hair look like it has static.
Cat with Litter Box: Dress like a cat (black clothes, cat ears and tail). Carry a new cat litter box, filled with the following mixture: rolled oats and granola cereal mixed together, Tootsie Rolls (softened with water), and dabs of chocolate icing. Offer to your friends. Gross... but delicious!
Catcher in the Rye: Find a set of (baseball) catcher's gear and wear it. Then take a clear garbage bag, and draw or glue labels on it to duplicate a bread bag from a loaf of rye bread. Cut holes for your legs, arms and face, and put it on over the catching equipment. Twist tie the bag on top.
Macy's Thanksgiving Day Parade Balloon: Get an appropriate costume, such as Bullwinkle or Snoopy. Attach long strings all around and then attach tiny plastic clowns at the end of each string. Then walk in slow motion humped over with the clowns just dragging the floor.
King Con: Dress like a jailbird, and add a crown.
Beekeeper: Buy or make a beekeeper's hat, complete with netting all around it. Wear khaki clothing. Glue fake bumble bees all over hat and clothing. Carry around a fake beehive, which works well as a candy collector!
Table for One: Use cardboard or other material to make a round table that will fit over your head and rest on your shoulders. Cover with a red checked tablecloth. Make your head into a centerpiece with silk flowers. Put play dishes and play food on the table, and add accessories (candle, salt and pepper shakers, menu, etc.). Wrap a second table cloth around your body.
Devil With A Blue Dress On: Blue dress, devil horns, devil tail, pitch fork.
Attack Dog Trainer: Take a stuffed dog and sew it to the arm of a long-sleeved shirt so it looks like it is biting you. Wear a name tag ("Bob's Attack Dog School). Add blood and scratches all over your body.
Rambozo: Wear black or camouflage pants and a jacket, with combat boots or other heavy boots. Cover your face with black or camo paint. Paint your lips with bright red lipstick. Wear a clown wig and wrap a black strip of cloth headband-style around it. Bonus points for a red clown nose!
Sick as a Dog: Dress up in a bathrobe. Have tissues and medicine sticking out of your pockets, thermometer in your mouth, icepack for your head, etc. Make dog ears and a tail out of brown cloth and wear a dog collar that says "Spike" or something.
Q-Tip: Puff up your hair and spray or powder it white (or wear a wig). Wrap your body in blue plastic wrap. Put cotton over your shoes.
Have You Seen My Lost Doggy?: Wear XXLarge clothing, and use padding to make yourself extra "hefty." Glue or sew a small stuffed dog into the "butt crack" area. Carry a "Lost Dog" sign.
Grandma Got Run Over By a Reindeer: Dress up like an old lady, with dress, slippers and a grey wig. Then put hoofprints on your back.
Martha Stewart: Wear a flannel shirt in pastel colors over a t-shirt, with loose khaki pants and comfortable flat shoes. Stuff gardening gloves in your pocket and wear an apron. Carry a fancy lined basket with fresh muffins and cookies inside. Handcuffs optional.
Dust Bunny: Wear a dirty old white bunny costume and carry a feather duster, or "dust buster" vacuum.
Little Dead Riding Hood: Wear the usual Little Red Riding Hood Costume and then use fake scars, wounds and blood to make it look like the Big Bad Wolf got you. Don't forget your basket!!
The Scream (the famous painting by Edvard Munch): Take a large piece of cardboard and paint on a frame and the basics of the picture...leaving a cutout for your head. Paint your face to match the painting.
Chia Pet: Wrap yourself in duct tape so the sticky part is facing out, then roll around on the lawn.
Not a Happy Camper: Wear a camp t-shirt and cargo shorts. Tear holes and burn the edges of the clothes, then attach leaves and sticks, burnt and melted marshmallows and fake bugs to the clothes. Tease your hair; add melted marshmallows and fake welts and insect bites to exposed skin. For more effect, attach a rubber snake to your ankle as if being bit!
Wicked Witch of the East: Design a large box to look like a house. Place it over yourself, cut holes so you can see out, and so that your legs show. Wear striped stockings and red glittery shoes. (Or wear black sweats and hang striped stockings with red baby shoes attached to look like the legs dangling underneath the house.)
Lead Role from the Movie "The Birds": Wear an old green dress or skirt and jacket, and attach fake birds (available from a craft store) pecking you all over. Tease your hair and add scratches and blood dripping from wherever birds are pecking you.
Jack and Jill: Get two t-shirts and write JACK and JILL on the backs of each. Jack can wear a broken crown and have lots of blood coming from his head. Jill should have lots of bruises from tumbling after, bruised face and bloody lips. They can both carry around tin pails of water!
GROUP IDEAS
Nudist Colony on Strike: Everyone dresses normally, and carries signs that say "Nudist on Strike."
Publishers Clearing House Prize Patrol: Everyone dresses in navy blue business suits. Make a large fake check out of poster board. One person carries red roses, another person carries balloons, and others carry a camera and microphone.
Circus Performers: Clowns, ring master, lion tamer, acrobats, etc.
Three Men in a Tub: The butcher (bloody apron and fake cleaver), the baker (white apron, chef's hat, flour sprinkled on cheeks, rolling pin) and the candlestick maker (a thick gray apron, candles). Bring along a plastic tub.
President and his Secret Service: One person is the President trying to shake everyone?s hands. The rest dress as secret service, and try to move people out of the way, looking from side to side.
Boxing Match: Two people dress as boxers (wear boxing gloves, nylon shorts, and robes with your names on the back). One person dresses as the Ring Girl (wear skimpy clothes and carry a sign with a number above your head). One person dresses as the referee (wear black pants, a striped shirt, and a whistle). The others dress as trainers (wear track suits, a towel over the shoulder, and carry a small wooden stool).
Wizard of Oz: Dorothy, Scarecrow, Tin Man, Cowardly Lion, Wicked Witch, Professor, Wizard, Glinda, Munchkins, Auntie Em, Uncle Henry, etc.
Goldilocks and the Three Bears: Great for a family of four especially if Dad is Goldy Locks!
Three Out of Four Dentists Who Chew Gum: Four people dressed as dentists, with three of them chewing gum.
Dukes of Hazzard: Bo, Luke, Daisy, Uncle Luke, Cooter, Roscoe, Enos, Cletus, Boss Hog, etc. Cowboy clothes, boots and hats. Daisy wears daisy dukes of course.
Queen Bee and Worker Bees: All wear black pants and shirt with yellow stripes, wings and antenna. Queen bee wears a crown and worker bees wear toolbelts.
Rocky Horror Picture Show: Dr. Frank-N-Furter, Brad, Janet, Riff Raff, Magenta, etc.
Peace, Love and Happiness: For three people: one person dresses like a hippy with a giant peace sign on their chest; one person wears red and white, with a giant heart on their chest; and one person wears bright yellow, with a giant smiley face on their chest.
Liquor Cabinet: Each person dresses like a character from your favorite liquor bottle: Captain Morgan, Sam Adams, St. Pauli Girl, Jose Cuervo, etc.
Clue Characters (from the board game): Mrs. White wears a French maid outfit. Mrs. Peacock wears a long blue dress and blue feathered hat. Miss Scarlett wears a sexy little red number with a long cigarette holder. Prof. Plum wears a purple suit, top hat, glasses, and carries a cane. Mr. Green wears a green suit. Col. Mustard wears a yellow shirt, safari suit, monocle in his eye, and a safari hat. Everyone carries a different prop: rope, knife, candle stick, lead pipe, revolver, wrench.
Austin Powers Cast
That '70s Show Cast
Friends: Monica, Rachel, Pheobe, Chandler, Ross, and Joey.
Stages of Madonna: Like a Virgin, Blonde Ambition, Like a Prayer, Ray of Light, etc.
Trading Spaces: Ty, Amy, Paige, Doug, Frank, Laurie, Vern, etc.
Warden and Prisoners: Great for a work group. The boss wears a guard uniform. The rest of the employees orange jumpsuits with the company name, and "DOC" stenciled on the back. You can also stencil each employee's last name and an ID# on the front chest pocket. Prisoners wear flip flops or sandals for shoes.
Chain Gang: Most of the group dresses like prisoners (striped jumpsuits and caps, numbers on their chests), with chains connecting them together and shovels in their hands. The rest dress like prison guards, and order the prisoners around.
Condiment Bottles: Salt, pepper, ketchup, mustard, relish, sugar, etc. All can be made easily using large pieces of felt wrapped around the body, with holes cut for the arms. Make "caps" from posterboard and then cover with felt. Use a marker or paint pen to create labels on the front of the bottles.
Birds and the Bees: Half the group dresses like birds and the other dresses like bees.
Lord of the Rings: Aragorn, Gandalf, Gimli, Boromir, Legolas, Frodo, Sam, Merry, Pippin, etc.
Bee Keeper Family: Dad dresses like a beekeeper, the child dresses like a bee, and mom dresses like a flower.
Mario Brothers and Gang: Mario and Luigi Mario, Toad, Princess Peach Toadstool, Yoshi, Princess Daisy, etc.
Breakfast Club: Each person dresses up as a famous character from a cereal box (Trix rabbit, Lucky Charms leprechaun, Tony the Tiger, Cap'n Crunch, Count Chocula, Snap, Crackle and Pop, etc.).
Three Blond Mice: Three people wear gray sweat suits, mouse noses, Mouseketeer ears, and mouse tails. Wear blond wigs (if needed).