o clarify, these were just glasses. TThey were not part of an exhibition. Except several passersby through the spectacles were an installation — and ogled them accordingly. To be fair, the solitary glasses looked very striking in their simplicity. And not to get too heady, but pranks seem like pretty solid contenders for performance art. Care to weigh in, Marina Abramović? Mashable has reached out to the pranksters for comment. Meanwhile, art remains a mysterious beast.