You are your child's best toy :)
Get up close and sing/coo/babble/talk to him. Clap hands, tickle, pull faces walk around the house and show all the different things...most babies love seeing themselves in the mirror (although they don't yet know that they are looking at themselves and think there is a nother baby in the room)
But other than that, at this age, they are working on grasping things, so objects (either toys or household items...as long as they don't have small parts of course) that can easily be held by small hands are great. Things that make a noise if you shake them (a bottle with rice in it for example...or a bought rattle) are great as they teach the beginnings of cause and effect relationships (i.e. they teach your child that if he shakes the object something happens). Toys/objects that are nice to chew on are good as everything is likely to go straight to the mouth very soon (if it hasn't already happened) and things that are nice to look at (bright contrasting colours)
For books... at this age, the actual story itself is not important. Choose books with large pictures of single items for naming practice. Books that your child can hold himself are good (board books, plastic books, cloth books).. at this age, you are more introducing your child to the idea of books rather than actually working on his literacy skills...he is likely to want to grab the book, suck on it bang it etc. Of more importance is you reading regularly. It is pointless to expect your child to become a bookworm if you spend all of your spare time watching the TV.
Hope that helps
I am a speech pathologist