From the Shirtpunch.com's interview with the artist:
"Question: What inspired this design?
Answer: This is another request from our friend Curtis! He's pretty good! If you have a request, drop us a line at our facebook page, it just might happen!"
About Shirtpunch.com: It's simple; ShirtPunch is your home for limited edition, pop culture tees... but there's a twist! We only offer one shirt every 24-hours, and they're always only $10.