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Gooooogle returns 12,000 hits for "edible ink". |
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I'm a sucker for pens, I keep giving them to everybody else. |
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We did edible pens before, several times. I'll see if any are still around. |
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I don't need edible ink, I need ink that will somehow be catalyzed to invisibility when it touches my skin! Maybe nanomechanical ink particles driven by intracellular ATP ... sure, *expensive* ink, but what's the price of one's pride? |
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