Give the web application on this site a URL, some text, a phone number, or an SMS code and it'll generated a 2d barcode called a QRcode, which you can save as a .png file to use as you like. Good for stickers, business cards, and other ways of making some data machine readable and scannable.
An open source clone of the game Worms in which you manipulate a team of characters (usually earthworms) to box, pummel, blow up, and otherwise mangle the characters of the other team in a cartoon-like fashion. Network/deathmatch play possible.
An open source platform/strategy game reminiscent of Worms.
Dscript is a style of calligraphy which is designed to represent information in two dimensions instead of one. Uses basic shapes and pen strokes that are both flexible and efficient. Can be written horizontally, vertically, or some combination if the writer chooses. Seems like it could aid visual thinkers in memorizing lots of very specific information (like structures and compositions of complex compounds in organic chemistry).