Schizo shirt design

I've been designing t-shirts for many, many years. Recently, my wife, son and I moved to a new home and as I was cleaning out my office (no small feat) I found some notes on shirt ideas. At the time I jotted down the ideas, there was no way to sell crazy shirt ideas (there was always Spencer Gifts, I suppose) and get them out to a wide audience. Luckily, all that's changed now and there are many, many online sites to choose from. So does anyone have suggestions of where I should take this design (modeled by my awesome cousin Noa)? What sites do you like?

Here's an incomplete list of online shirt competitions:
Threadless (the Mama Bear of online competitions)
Designs By Humans
Wooshka
Uneetee
Withoutpockets
Shirt.Woot
Here Itself
Tilteed
Caponocca