Over on imgur, a user with the alias 'hababird' has posted a gallery of images showing the step-by-step process she went through to create a gigantic 2.4m wide wooden Spirograph set that uses chunky pieces of chalk to create intricate artwork on streets and sidewalks.
Normally, you can't wait to take a hose to a kid's crappy driveway chalk art as soon as they have moved on to another distraction, but these artistic creations might actually add to a home's kerb appeal. And, if not, the rain will eventually wash them away for you.
There's no word on if the creator has any intentions of releasing plans or schematics for others to build a giant Spirograph of their own, but her step-by-step photos are detailed enough for anyone who's handy with power tools to endeavour to build their own. [imgur via Coudal]