Bee Cups watering stations collect a teaspoon of water for thirsty bees and butterflies. Each one is handmade from porcelain and has an ultraviolet ceramic glaze that pollinators love. Bees, birds and butterflies see the ultraviolet colors all the time, but humans need a blacklight to make them visible. The shape of the porcelain watering stations encourage evaporation and prevent mosquitoes. In most climates the water evaporates by the end of the day.