Use a Raspberry Pi, (or any computer) to make a clock that plays pong. 

Every minute, on the minute the right player scores a point. Every hour, on the hour, the game restarts and the left
player quickly scores points equal to the current hour. 

This code lives here:

A video of the clock in action is here:

Be sure to look at the Wiki if you're having problems using PyGame with your Rpi on the composite out:

--- Setup ---

1. Install the latest version of Raspian to your Pi. Be sure to set locale and timezone in raspi-config!
2. Configure your display 
3. Some other stuff

1. Download the code to your RPi.
2. Execute the command Python

Copyright 2013 Don Clark -