If you have two turntables, are a fan of spirographs and geometric art, then you're going to love these videos. Three clever turntablists have figured out a way to transform a pair of record players attached with robotic arms equipped with pens to create symmetrical shapes.
The two arms are attached on a fixed point at the center of each deck. You'll see in Ally Mobbs' video how he utilises the different playback speed, pitch and direction to create very complex patterns on the canvas/paper.
If you have two turntables and are able to build something like this, I'd definitely recommend trying it out. Should you do so do post a link to your results in our comments below. Sadly, yours truly is short of a turntable'¦