Optical illusions can be fun. Messing with the human senses is always a good time. But when it comes to our green, the last thing we need is to think it’s in danger. The Micro Bank optical illusion does exactly that. When you put a coin into the slot, the Micro Bank gives the appearance of becoming impossibly narrow at the bottom as the coin slides down the funnel. The coin reappears in the inner box, apparently 75% smaller than its normal size. But don’t fear! This is in fact just an optical illusion. Open up the slot in the back and you’ve got your money, full sized and as good as new. The box itself is 8 x 8 x 12cm so it should fit nicely in your house. Available now for $19.95, or 9.99 euros for you keeping score. — Andrew Dobrow
Product Page [Grand Illusion, via Coolest Gadgets]