One option is a freely available online world called Shidonni that magically allows your child’s drawings to come to life through automated animation and interact with each other. This is a wonderful place for kids. You draw your own creatures and them place them in worlds that you design. Then you can interact with them, even feed them. And as the parent you can, if you are so inclined, ask the good people at Shidonni to recreate one of your child’s drawn creatures as a stuffed animal (for an added fee, of course) that you can keep, or give as a gift to your kid.
It’s a wonderful idea and a wholesome activities for children.