Aquamanilia are stylized pitchers used for ritual hand washing by shaman, rabbis and priests for religious ceremonies. There is arguably no better collection of them than the one at the Metropolitan Museun of Art in New York.
Aquamanilia means "water for the hand" and each vessel had two openings, one for filling with water and one for pouring. Human and animal forms were used too, the animals often being fantastic creations. Certainly more inspiring than a regular bar of soap and a tap.
Here are some great examples: