One method is to hold one end of the strip between your teeth. Then, when you run your nail along the strip you hear it talk, but no-one else does. Or you can stick one end of the strip to an inflated balloon or a paper cup using sticky tape. The balloon or cup acts as an amplifier, and you can then demonstrate it to anyone nearby. Never heard a balloon talk?
http://www.grand-illusions.com/acatalog/info_14.html - via Gizmodo
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I had a teenage mutant ninja turtle that had something like this you put the red strips into a hole in the side of the turtle's shell and the 'shell' was the speaker, one of the saying was Cowabunga. i also made these strips work with the fingernail approach
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I dimly recall a few years back, a set of these with "famous quotes" recorded on them being given away in packs of breakfast cereal. "One small step for man", that sort of stuff.
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Yeah, these were really common a few decades ago but has become an item of obscurity lately. Would be pretty neat to see them making a comeback though, especially in this day and age of electronic devices inside everything. Lowtech 4 life!
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About 30 years ago, a friend of mine got a birthday card that had a strip in it that said "Happy Birthday" when you ran your thumbnail along it.
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At Oglebay Resort in West Virginia, they sell these in a gift shop. They are attached to a paper cup. When you run your fingers down them, it says "Merry Christmas!".
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