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Ultraviolet Spy Pen – $9.95
Do you long to be a secret agent? Sorry we can’t make that happen, but we can help you pretend! You just need to get yourself the Ultraviolet Spy Pen from the NeatoShop.
With the fabulous Ultraviolet Spy Pen you can write all the secret grocery lists your heart desires. No one ever needs to know you are dealing with that slight constipation problem. Yippee for invisible ink!
Be sure to check out the NeatoShop for more amazingly Geeky Gifts!
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Some types of invisible ink are right there in your kitchen cupboard!
Hundreds of liquids, from fruit juices to specially formulated chemicals, can be used as invisible ink. Here we explore six of the most interesting and accessible types. We hope you’ll be inspired to make your own invisible ink at home. With a bit of practice, you too can become a master of steganography (which is the art of writing hidden messages, in case you didn’t know that already!)
How much money does a professional steganographer make? Link -via Geek Like Me
