Gabriel Nderitu is a Kenyan IT worker who devotes his off-hours to attempts to build an airworthy airplane out of junk. Here's his latest attempt: a small plane (with detachable wings), powered by a Toyota engine.
The strutted wing and ailerons are skinned with aluminum sheet. The engine itself turns up to 4,000 rpm, driving a 74-inch wooden propeller through a simple reduction belt drive. Nderitu says "a bit of it was a bit of reinventing the wheel … not really looking and trying to copy." The aircraft is not yet finished and there is no guarantee Nderitu's craft will ever be licensed, or allowed to fly, or that it is even capable of flight (which seems unlikely). But that may not be the point.