Beginner vigilantes! Kick-ass crackers! Motocross accessories! Honest cops!
They're for sale on etsy (these designs are toughening up that site), and they look good in cheap, beat-up 9x11 (not 8x10) thrift-store frames.
Thusly, they make good Christmas gifts, especially if you know a beginner vigilante who has bare wall space that needs filling.
These are the first four designs in the series. More to come, and if there's significant interest, many more -- maybe even customs.