Together with Theo Seemann I made this semester project in 2008.
The goal was to make a registration formular for a Wii-Tennis tournament where it is possible to register as single-player or as a team of two players.
The formular itself should be very easy to understand and a single-player should be assigned to another single-player automatically.
Also the whole tournament table has to be live, so someone who registeres himself could see immediately where and when he will play.
The formular was scripted in PHP, JavaScript, SQL and it worked great for the last two Wii-Mote Masters: http://nm.merz-akademie.de/~wii/