In order to encourage people to make the BEBL, I am offering $35 to the first person to build and demonstrate a functioning BEBL system. That should be enough to cover the cost of the electronic components.
To claim the prize, post a video on line of your accomplishment demonstrating functionality both on and off the bike. The video should include close-ups of the completed hardware. I will address any assembly questions posted here or at Instructables.
The Bar End Brake Light instructions have been made into an instructable and entered into the Arduino Contest.