A dunk tank, also known as a dunking booth or dunking machine, is an attraction mainly used in fairs, fundraisers, and parties. It consists of a large tank of water, over which a volunteer sits on a collapsing seat. When a ball strikes a target, the seat collapses, “dunking” the person into the water. People will often volunteer to get dunked fully clothed for a humorous effect. Put your boss, colleague, friend, spouse, brother or sister in the dunk tank and blast the target!