eurotracer: "in january 2002, twenty 2-euro coins have been spread around by the eurotracer-team. this site traces the wherabouts of these euros in order to research the speed of travel and the way it moves around in europe. therefore a sticker with an id, password and a reference to this website has been placed on all of these euros, so that they can be traced."

if one of these prepared 2-euro coins cross your way, you can report it to eurotracer!

and another euro story found via eurotrash: "strippers get magnetic panties to cope with euro coins".