The Spirograph completely revolutionised doodling as we know it, and Narcélio Grud hopes it can do the same for street art which is commonly looked at as nothing more than graffiti. His machine lets anyone who's unskilled with a can of spraypaint make complex patterns with a spin of its wheel.
Assembled from an array of bike parts that ride around a ring made from a bent metal pipe, the contraption automatically spins an attached can of spray paint leaving intricate designs on a wall. And instead of swapping out different sized gears to vary the patterns, the user just needs to reposition a couple of bolts for a new design. If only the whole thing wasn't so bulky, making clean getaways if the cops show up next to impossible. [Vimeo via Technabob via RebelArt via Nerdcore]