I don't collect these, but my nieces do! I found the town playset, some sort of show stage and 13 animals for 6 bucks at a flea market and 20 pets and a carying case for 15. All the animals are unique too! That oughta make a couple of 7 year olds happy! So whats the easiest way to clean these animals. The cats are really nast and gumped up with stuff