From the Shirtpunch.com's interview with the artist:
"Question: What inspired this design?
Answer: Inspired by Magritte’s "The Treachery of Images" where he has a picture of a pipe with the words in french underneath “Ceci n’est pas une pipe.” which translates “This is not a pipe.” This is the same concept but with a Star Wars twist. The words underneath translate “These are not the droids.” http://4.bp.blogspot.com/_kwoeqBU-2wY/TPT-ozX_VOI/AAAAAAAAAAw/38I4JYbsbEA/s1600/Margritti this is not a pipe.jpg"
