Do u know where I can find plush animals with plush insides that can be removed?

I am looking for a present for my son who wants to be a vet. He is 4 1/2. I want to find plush animals with a zipper that has removable organs inside i.e. intestines, stomach, heart.

I haven’t heard of them but you might try looking a this site. They have a large inventory of plush animals.

http://www.stuffedanimaltoys.info/