German company Conrad recently showed off a DIY bike lock that will lift your bicycle up a lamppost, (hopefully) putting it out of reach of thieves. The device is motorized and has skateboard wheels that let it "roll" up the pole, away from prying hands.
This is not a finished product that you can buy, but something anyone can make. Conrad is a Web store that sells parts and tools for tinkerers. In fact, the page where this video is featured includes links to the different components needed for those who want to attempt to make the DIY lock.
Check out the video below to see the contraption in action.