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September 20, 2005
Magic Disappearing Ink Pen
This is an interesting one.
The pen has specially formulated blue ink that disappears when you use the neutralizing tip on the other end.
"Harmless to paper, it's great for book notes and marking documents."
Erases 400–500 linear feet of writing.
$2.99 here.
September 20, 2005 at 09:01 AM | Permalink
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