This is fantastic: http://urbanprankster.com/

I found this site via the Daily Dish which posted “Idea Vending Machine”

“Jake Bronstein recently bought a toy vending machine off the Internet. He filled the toy capsules with ideas of fun things to do and started placing the machine in various spots around New York. For 50 cents you get the original toy, an idea, and a map to guide you to the location for your idea. Each capsule also contains a quarter, refunding half of your purchase price (the machine wouldn’t let him charge less than 50 cents.) “

This site’s coverage is fantastic: