1,000 buttons. Each can be pressed only once, ever, and you have to leave a message to press one.

buttons.mojitiles.com A free, funny little social experiment. Pick any empty button, leave a message in it and choose a color. It stays forever. Tap any pressed button to read what a stranger left in it. 5 presses a day each. When all 1,000 are gone, the page is finished for good.