From the Shirtpunch.com's interview with the artist:
"Question: What inspired this design?
Answer: I am a huge fan of old cartoons and commercials. When I came across the classic Tootsie Roll Mr. Owl commercial a few months back, it reminded me of Luke when he visited Yoda on Degobah. I only wish I could remake an animated version of this design."
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.