SDCC 2010 Cube Dudes instructions available here at Brickset!
Brickset member Jsutton has reverse engineered the models and created step-by-step instructions of the five SDCC 2010 Cube Dudes. You can now view them excusively at Brickset!
If you have the parts, do take the time to make them as they are very cute!
Update: Jsutton has provided new versions of the instructions that are slighty more accurate, thanks to input from those that actually own them.