Disclosed are embodiments of apparatus, methods, and systems for fastening a rotatable tube to spigots and nozzles, for fluid-water flow diversion to facilitate the use of sinks by small children. In one embodiment, a tube is provided, which is fastened to a spigot and nozzle. The tube-spigot fastening may be facilitated by a tapered washer. The tube, in turn, may be rotated about the supporting spigot secured to the electronic article. The tube may be configured with curvature, tapering, wall and end openings of sufficient weight, shape, and/or size to allow for optimal water flow choices. Patent NoMonth/YearName 2,171,023August 1939Buxton 1,253,309January 1918Ulleland 5,349,987September 1994Shieh 4,736,890April 1988Wallington 2,476,079February 1947Benjamin 5,072,757December 1991Lin 2,507,535May 1950Madsen 5,758,690June 1998Humpert et al U.S. Pat. No. 6,179,130 B1January 2001Nguyen et al 6,381,770 B1May 2002Raisch 1,799,815April 1931Hoff 6,085,790July 2001Humpert et al 5,833,849November 1998Primdahl 3,765,455October 1973Countryman 5,983,938November 1999Bowers et al U.S. 2007/0176024 A1August 2007Denzler 5,165,121November 1992McTargett et al U.S. Pat. No. 6,367,707 B1April 2002Kang 2,747,930May 1956Hyde U.S. Pat. No. 6,648,187 B1November 2003Shypkowski 3,316,928May 1967Weakley D288520March 1987Bozarth U.S. 2006/0207670 A1September 2006Peters U.S. Pat. No. 6,425,149 B1July 2002Wang 3,638,968February 1972Barks U.S. 2007/0175531 A1August 2007Daniels U.S. Pat. No. 6,994,318 B2February 2006Burke