Jim Henson's Prodigy

Sometimes I worry so much about my son.  Reading and writing are still such a challenge for him.  He has improved exponentially, but it is still an up hill battle.   But then he does something like this:

Just some Sculpey and an imagination.  He started with a need to create a hamburger and all its fixin's and then he got into these little characters.

Looking at them all I could think of was the Muppets.  What do you do with a creative mind like this?  How do you grow it from play to art / stage?  I know the first step is to let it flourish and grow without being stomped on which we have allowed, but now how do we give it the light and nourishment to offer him stability and earnings in the future?