Definitely animals - they're not a vegetable or mineral which are the other choices :)I must get on to mine - I'm really looking forward to doing a few and I'll definitely be making some for me too.
Oh your post made me laugh - I was thinking just animal as in something living!! I see Jacqui has confirmed my sophisticated classification system. I must get on to this project - yours look great.
I had to come back and leave another comment because I noticed, while comparing yours to mine, that we have used the same fabric on one, but luckily yours is red and mine is blue and we put in different animals! Phew. ;)