https://www.redbubble.com/shop/ap/74837450?ref=studio-promote
Here it is!
Disclaimer: Redbubble might remove it, and I'm not sure what they do in that case - they'll possibly cancel your order. I had a Star Wars design up there once and they nuked it.
But anyway, for now it's there on t-shirts, stickers, pin badges, etc. :)