These have included flag football, basketball, volleyball, kickball, wiffle ball, and many more. Some wiffle ball players have built fields to resemble major league ballparks. There is a backstop for Tee-ball or wiffle ball as well as playground equipment. The game of Wiffle ball is a variation of baseball. Rivera credited playing wiffle ball as a youth with creating his swing. Wiffle Golf uses the stroke play rules of traditional golf. But not all wiffle ball fields have been modeled from major league ball parks. The Wiffle ball is designed for indoor or outdoor play in confined areas. In the right field corner there is a wiffle ball field and a playground. Wiffle ball executives originally thought the order was a joke. Players may use many different hitting methods in Wiffle golf. "Wiffle Ball" (2008), "Timmy Text Message" (2009), and "White Zin" (2010).