Keywords: awesome, games
I blame Skyspark for this:
Rube-Goldbergian contraption to add 1 to a binary string

He's got me hooked on a generally-awesome game called Manufactoria, in which you construct programs out of conveyer belts.

That mess you see above interprets the string of dots in the robot being processed as a binary number and adds 1 to it.
heh mine was somewhat different.

Less pieces. ;]