Price: | $4.00 |
Show your pack of gum and make a scribble on it with a marker. You can touch and rub it, that’s the real ink. Shake the gum and visually the ink morph into any drawing or any writing.
You can also make the ink vanish and reappear on anywhere you like.
It’s simple and very practical. It can be examined before and after.
No Thread or Magnet involved. You can make it in a seconds.
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