Let's say you have a couple of FROSTA stools from IKEA, but you want a bike. Most people would, I dunno, sell the stools on Craigslist and then try to buy a really cheap bike. But Andreas Bhend and Samuel N. Bernier are not most people.

Bhend and Bernier created a "DIY Draisienne" using the stools and a tiny handful of 3D-printed parts. They then put together all the steps, in the manner of an IKEA manual. Behold:

[h/t Kottke.]