Credit goes to Jose de la Torre for the idea and marketing of this item in the 1970s and '80s.
At the conclusion of your Color-Changing Knife routine, you produce a handful
of 22 rainbow-colored miniature knives. T's only an instruction sheet
for the "The Miniature Knives," However, included in the Ziploc bag
is a set of red and white Ascanio-style Color Changing Knives,
but with no routine for the standard color-changing effect.
(Note: The instructions state 24 miniature knives come with the effect, however, t are only 22 in the bag.)