Incendiary Chinese artist Ai Weiwei, known for his highly political art, isn't exactly a fan of surveillance cameras. When Swiss art curator Hans-Ulrich Obrist asked Ai to contribute to a Do-It-Yourself compendium full of projects from artists, Ai designed an anti-surveillance camera apparatus, made from everyday objects.

Seizing on both its functionality and street culture significance, Ai's design is centered around a can of spray paint. The rest of the device works to get the spray paint into difficult-to-reach places, like the lofty perches where security cameras normally rest.