I've posted a couple of my classic mash-up designs on Redbubble. I made the Hyrulogic and Super Punk Bros illustrations back in 2012. They were originally 11"x17" prints and were sold on my Etsy. I sold them as shirts on another site, but I had a few problems with them, so I brought them to Redbbuble.
I'll be posting more of my old designs on Redbubble along with some new ones. Be sure to check it out from time to time.
-Robert M. aka Doom CMYK