Meet the Hot Tug, the world’s first ever drivable boat and hot tub.
The idea behind this invention basically takes a wood burning jacuzzi and makes it float, before adding an electric motor on the back, to transform it into a drivable private boat. You and your mates can float down a river, without ever going anywhere near the water.
If you’re looking for history’s most unnecessary gadget, you can rest easy. We’ve found it.