Lemon Juice Invisible Ink
A blank-looking paper hides a message written in lemon juice that appears when warmed safely by an adult.
invisible-inkhomehidden-message
Would you build this one? Rate it here or from the swipe deck.
A blank-looking paper hides a message written in lemon juice that appears when warmed safely by an adult.
Would you build this one? Rate it here or from the swipe deck.
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