Thanks everyone! You were all a big help!

I just brought home some cheap plastic cereal bowls. They're mostly dark but slightly transparent.. I'm not extremely worried as they will be in a dark room most of the time anyway.

I agree with you Kat! When I cut up my cereal bowls I melted the edges with some flames. I was worried about getting anything that 'folds over' because I'm a freak about sharp edges with animals. D:

Thanks again!