Buy a Pythagorean Cup , painted and decorated with Geometric Art with an Owl in the middle. Geometric art is a phase of Greek art, characterized largely by geometric motifs in vase painting, that flourished towards the end of the Greek dark ages, circa 900 BC – 700 BC. Its center was in Athens and from there the style spread among the trading cities of the Aegean. The vases had various uses or purposes within Greek society, including, but not limited to, funerary vases and symposium vases. A Pythagorean cup (also known as a Pythagoras cup, a Greedy Cup or a Tantalus cup) is a form of drinking cup which forces its user to imbibe only in moderation. Credited to Pythagoras cup, it allows the user to fill the cup with wine up to a certain level. If the user fills the cup only to that level, the imbiber may enjoy a drink in peace. If the imbiber exhibits gluttony, however, the cup spills its entire contents out the bottom (onto the lap of the immodest drinker).