Tourism both curses and blesses Cape Cod and the islands of Martha's Vineyard and Nantucket—curses them because it brings overdevelopment and suburbanization but blesses them because tourists provide an economic base for many of the towns on the Cape and islands. In the case of traditional crafts the tourists' desire to bring back a souvenir from a vacation often meshes with a craftsperson's desire to maintain a tradition while creating a viable business. Two cases of the interaction of traditional crafts and tourism are Gay Head pottery and Nantucket lightship baskets.