If you ask us what our idea of a high-tech trash can is, we'd tell you it's one with a built-in compactor powered by solar panels. Sean Auriti from Brooklyn, however, had other ideas, which ultimately led to Ecan -- a garbage bin that earns you money (in cryptocurrency, that is) whenever you toss anything in. Unlike our rather simplistic vision of a modern trash can, Ecan requires anyone who wants to use it to identify themselves on a Raspberry Pi-powered screen that uses solar energy to run. That's not all, though: you also need to scan the barcode or anything you want to throw, unless it's anything without one, like a banana peel or a candy wrapper. In that case, you'll have to take its picture using the bin's accompanying app before it starts mining Emrals (what Auriti calls the cryptocurrency he created for this purpose) for you.