Andy Schroder developed a bitcoin controlled Fluid Dispenser (Think "gas pump where you self-serve pay by bitcoin").
This 20 minute video is cool.
Unfortunately he's banished to the newbie area, so no one is seeing it on this forum. His post is here:
https://bitcointalk.org/index.php?topic=274702.msg2943141And here's what Andy says:
I've developed a mobile, automated fluid dispenser that accepts bitcoin as the payment mechanism. You can watch a video and see some pictures about the device at the following web address:
http://andyschroder.com/BitcoinFluidDispenser/You guys have to see this! Great work!