These fake eyeball stickers look like they'd come in handy, but The Museum of Hoaxes is having a hard time tracking down a place that actually sells them. They look easy enough to make yourself, though. Link
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. Come and hear Mark speak at the ALA conference in Chicago on July 1.