Fred Kaps (official name Abraham Pieter Adrianus Bongers), (June 8, 1926 - July 22, 1980) was a Dutch magician, famous for being the only magician to become FISM Grand Prix world champion three times. He was the creator of numerous original effects including his version of the colour-changing silks. Another popular effect he often performed was the salt shaker, in which act he poured a little salt on his empty hand, made the hand into a fist, then poured an "endless" supply of salt from his fist onto the floor, and as part of his act he would exhibit facial expressions of great surprise and disbelief, as he would, seemingly unsuccessfully, try to desperately stop the flow.