Lego lie detector

Picture 8 Nicole says: It's a lie detector - or, more accurately, a galvanic skin response sensor - made out of Legos, aluminum foil and velcro. What more need be said?

"I found this link through a post about 'Demonstrations of Implicit Knowledge' from Colorado's Cognitive Science comunity on LiveJournal (full disclosure: I am an employee of Six Apart, Ltd., and work on LiveJournal)."
Link (Some other cool demos)