One man's junk is another man's treasure -- that's the bromide behind eBay. And sometimes if you look hard enough you can find a device that changes everything. An invention so magnificent, so unknowable, that its discovery alone could "make you feel good all over the world" without even making a bid. The prototype pictured above has universal purpose: it can inflate helium balloons when it detects hot lava, find gold floating in the sea, or let you know when a horse wakes up with the Swine Flu. Really, the choices here are limitless. And for just $10.51, the "Universal Invention of the future" is yours -- hurry, just 8 hours left. Check the video treasure after the break, you can thank us later.