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Color-Changing Knives

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Color-Changing Knives is an effect where a pocket knife changes color as it is pushed through the fist.

Magicians known for performing: Ascanio, Fred Kaps, René Lavand, Matt Schulien.

Effect is usually credited to Walter Cerretta Jeans, but that remains uncertain as no record has been found yet.[1]

A set of knives was marketed in 1935 as "The Juggling Knives".[2]


  • James Riser's Color Changing Knives
  • Enardoe by E.O. Drane
  • Ganson Knives
  • Merrill Knives
  • Mogar Knives
  • Jose M. De La Torre Knives
  • Scotty York Knives



  1. Conjuring Credits' article on misc:color-changing_knife
  2. The Linking Ring, Vol. 15 no. 10 (December 1935)