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Elliot Rudell of Torrance in California explains how you can make those
lollipops that glow, whoop and quack. The lolly is frozen onto a plastic stick,
with electrodes embedded in the handle and in the ice. A lamp and a sound chip
are also placed inside the ice. When a child holds the handle and licks the ice
lolly, their tongue completes the circuit, producing a sound and light show (WO
98/53892).