Grumpy Git Clothing

Grumpy Git Clothing is a U.K.-based clothing company that sells t-shirts and aprons with funny slogans and designs on them.  They have an ongoing design competition that pays £250 for accepted designs (as voted on by the site's community).  But you don't have to submit a design to get paid -- for accepted slogans without any artwork, they pay £100 apiece.  (See the Submit a slogan! section toward the bottom of the competition page.)