Doors have many purposes: security, privacy, and keeping you safe from the elements are three of the biggest. If none of those things really matter to you, this is a pretty sweet substitute to a real, functional door. The Watur is a door made out of streams of water that continually fall down until someone hits the "handle" and they stop, allowing for access. Alternatively, in the summer time you can use it to cool off when you enter the house by walking through the door when it's "closed." Surprisingly, this thing is actually for sale and isn't just some prototype built by an overachieving design student. Yes, for a mere $2, 000 you can have a silly and somewhat pointless Watur door to impress and beguile your friends and acquaintances. Just make sure to be smart about it and use it as an interior door, for obvious reasons. — Adam Frucci

Watur, via Oh Gizmo!