From the MAKE Flickr pool
Dan put his DIY push-pot design to work as the sole input control for a classic game of hangman -
Hangman on the Arduino. A random word is selected from a list, the user scrolls through the alphabet and presses down on a potentiometer to select the letter. Then enclosure is made from the side of an old computer and some scrap wood I had laying around the shop.
Schematics and code available over at NerdyByNature.