The body i.e. floating hollow ball (1), has a shell formed by two shell parts (1A, 1B), which are connected together by locking connections (2B, 2D) in a material-fit or form-fit and/or force-fit manner. The shell has an opening (2.2) for filling shell interior with fluid, and is arranged in an air-tight inner hollow body i.e. inner hollow ball (4). The shell and/or the inner hollow body is formed in a spherical manner and is made of plastic i.e. polyethylene. The inner hollow body floating on an open liquid surface comprises a predetermined drive. The shell parts comprise reinforcing ribs. An independent claim is also included for a method for manufacturing a technical floating hollow body.
