Thank you everyone. And thank you, Tikeyas_mom for providing that link. It is much appreciated.

For who asked, no she didn't give the cage or anything, she was returning him to PetSmart, the vet in PetSmart was going to euthanize him, because, "he's not worth the money." What a vet! My mom bought him a nice cage, it's got a "lookout tower" and a running wheel. He likes it. He's so cute! I believe he's a dwarf hamster. Oh... and we named him Riley.

Thanks, everyone!