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Mood Sheet
See psychedelic patterns the safe way! Press your hand on this 6" x 6" sheet of liquid crystal and leave a print of swirling colors that, like the mood ring of yore, you can use as a sign of your mood. The pattern will blend and fade in seconds as the crystals react to temperature. Tiny liquid crystals inside the film-like material react to heat by changing colors. As science, it demonstrates the way liquid crystal displays work. And you can cut it into pieces to incorporate into a science project. Or just leave it out for guests to play with when the party turns boring.
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91582 LIQUID CRYSTAL SHEET |
Accountant In A Jar
Or in the lid, actually. Jobar's Money Machine is a clever little bank that counts your change as you put it through the slot on top, and keeps a running total up to $999.99. (That's more than the jar will hold, of course, but you could always attach the lid to a 55-gallon drum.) Measures 6-3/4" tall x 3-1/2" dia in clear plastic, and you add a pair of "AA" batteries. Counts quarters, nickels, dimes, and pennies only.
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93475 MONEY MACHINE |
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