My hamster is called Captain Mc Cuddles, the name could work for a guinie pig too :)
I am plannign on getting 2 dwarf hamsters i am going to call then Kernal Karrots and General Uggy.
You see my theme :) Theres lots of possible names, you can use any of mine :) You could also use sergant segway, i like that one :)
(If you want a guinie pigg you have to buy a pair, its not fair on your pet making it live alone, unlike hamsters, guinie pigs and rabbits need company)
Hamster owner (my brother has a guinie pig)