Digital fabrication, machining, woodworking, bicycle making, welding and sewing: All skills wielded by California-based Amy Qian, a one-woman fabrication shop.
I randomly came across her blog, specifically this shot of a bicycle frame-building jig:
She made it to repair her bicycle, which was run over by a car (without her on it); the frame was destroyed but the components were fine, so she fabricated a new frame out of bamboo.
Then I saw this salt shaker she whipped together out of Delrin, polycarbonate and a brass fitting:
Next, a step-by-step tutorial on how to repair a DeWalt planer using a sprocket from an old bike rear derailleur:
On her Instagram I found a bunch of functional mechanisms that she made with a lasercutter and Delrin:
She's put together a sample board featuring a variety of these flexures for demonstrations:
Check out more of Qian's projects on her site, YouTube, Twitter and Instagram.