InfinityClock
From Interlock Rochester Wiki
This is a little sparse on details, but the original project is define here; [1]
http://www.bramknaapen.com/wordpress/wp-content/uploads/2009/08/_mg_3234.jpg
Here's the rough parts list from the blog;
Arduino Mini Pro USB-Serial converter 12x TLC5940PWP (SMD) Led drivers 60x RGB SMD LEDs DS1307 + battery to keep track of time Loads of circuitboards (12 black ones and 60 white ones)
Obviously, we'll need something more concrete for construction of one of these. I wonder if we can use an Arduino Nano to replace the first 2 items. We could do a custom shield to hold the DS1307 and a small battery for backup power, and connectors for LEDs