I'd never stick one of these clunky beeping remote finder devices on any remote I gave a damn about. But they are triggered by the tone of the included whistle, which gives you and your clicker a relationship not unlike Lassie and Timmy. Very cool, until you lose the whistle. $18. Bonus: They've got a keychain version with a flashlight and voice recorder, too. [1ofakind via Crunchgear]
I had a keychain that did this same trick in 1992, only you whistled with your mouth, instead of using a loseable device. I probably could have double stick taped it to my remote then, but it's probably better that I waited 16 years for an official release. Great invention, keep up the hard work!