Haunted Memories sells creepy posters of vintage photos that morph into undead ghouls as you walk by them. The site has a bunch of GIF animations showing the effect. Link (via PCL Linkdump)
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.










