Are we merely a brain in a vat? A floating glob of flesh receiving and transmitting electronic signals, independent of bodies, or even worlds? While Wikipedia features a page dedicated to brain in a vat thought experiments and popular culture references, now you can have a physical, real-space conversation piece to remind you of these existential dilemmas. Invite your friends or just stare into the mystery all alone. It glows. It bubbles. And best of all, it comes fully assembled. The instructions say to just add water. Invite your friends or just stare into the mystery all alone.