A wondrous item.
A fine, clear wine glass, embellished with gold trimmings around its edges. Subtle images of vines and leaves are engraved into the glass around its lip. Some arcane inscription is engraved into the bottom of the glass.
Effects
The glass contains an extradimensional space within it, capable of holding up to 50 gallons (roughly 190 liters) of any given liquid. Non-liquid object may enter the cup, but will not be accepted into the extradimensional space. Once the cup is around three-fourths full, any new liquid poured into the cup will enter the extradimensional space. When the glass is tilted such that liquid would pour out, any liquid present in the extradimensional space will be used first.
The mouth of the glass acts as a bottleneck for the glass's pour speed, which is around 1 gallon per second.
History
The Peas found the wine glass sitting on a table in the bandit hideout on Sordin Isle. Wander later presented the cup to Seamus, who has kept it ever since, utilizing it constantly as an alcohol receptacle.