I think stuffed craft animals would be a good seller in many areas if your wife doesn't mind sewing.
There are lots of kits that can purchased but, I think between the two of you, you could create some fun patterns of your own.
My wife has a friend that makes stuffed bears out of old clothes. We got a pair of my dad's
corduroy pants, blue jeans, and a flanel shirt and the lady made a stuffed bear out of my
dad's clothes for my grandson (dad's great grandson) and ironed on a picture of my dad.
My grandson has it as a keep-sake more than a toy but, it would be fine as a toy.
God Bless! Spirithorse