Goose Barnacles, so called because they are anchored by a thick flexible stalk which gives them a overall resemblance to a goose's head and neck, are periodically found washed onto the beaches of northeast Florida following northeasters and hurricanes. The species attaches to and grows on just about anything that floats in the sea including including some unusual items such as the toothbrush illustrated below. The pictured toothbrush may be a "standard issue item" aboard some commercial vessels as identical model brushes  were subsequently found beached some three miles north of the location where the pictured specimen was found.