WAHHA GO GO, the latest nonsense machine by Tokyo-based multimedia art "company" Maywa Denki, is a manually operated device designed just for giggles. To activate the machine -- which looks like a skeletal humanoid with accordion-like lungs and a big toothy grin that takes up half its head -- simply spin the heavy metal disk mounted on its torso. WAHHA GO GO rears back its head, takes a deep breath, and exhales through artificial vocal cords to emit an uncanny laugh that invites you to laugh along with it (or at it).

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