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Peek-a-boo Lissajous
Seesaw screen eye kazoo
Eases you, teases you
Leaves a few queasy too!

To play this Interactive card:
Use arrows at right to adjust levels up or down to change wavelengths.
Pick box 1 or 2 for further variation.

Java applet running here.
Lizard Chew (Java) by W. J. Baker
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