Here are some pictures of the C&C (cubes and coroplast) guinea pig cage that we made for Louie.

We are lining the coroplast base with newspaper and then using timothy hay and shredded newspaper as bedding. This works out great as the newspaper soaks up any moisture (dripping water bottle and other liquids) and then dries so as to keep the piggies from having to walk around in moist bedding.

For more information on cubes and coroplast guinea pig cages see:
http://www.cavycages.com/cubes.htm