A tubulum is a percussion instrument made of flexible pipes of different lengths. Israeli designer Asaf Wainberg took that idea and made it wearable. He calls this musical instrument an OCTAV, for when you've got such a good beat you have to dance to it.
See a video of the eight-armed OCTAV in action at Yanko Design. Now, if Wainberg could just make those pipes move around like the Spider-Man villain, he could take over the world. -via Everlasting Blort