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Disappearing Ink Pen

Disappearing Ink Pen

Regular price
$5.99
Regular price
Sale price
$5.99
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An exciting way to create a secret message for your scavenger hunt! The black ink from this pen becomes completely invisible when subjected to heat and it keeps invisible until it's chilled to freezing temperatures. Direct flame, steam, and the heat from a hair dryer will all make the ink disappear. And placed inside a freezer for 30 seconds and the ink will reappear again!