The Kenetic Unit Detector
Page Two
Added to the main body was a Potato masher with a
blinking L.E.D. mounted on the shoulder.
Added in the space where a fourth knob would be
was a small toggle switch similar to the ones used
on the Proton Pack's Throwers. On my model this
turns on and off the blinking led. I also removed
and relocated the search coils to inside the main
body which gives the prop some working
electronics. When turned on the knobs can be
adjusted to where when the blinking L.E.D. causes
the meter to move and sound to emit from the
speaker.   

The two together:
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And added to the shortened pole for the search coil
was a strainer spoon.