Need some gifts for your kids, grandkids, nieces and nephews? More specifically, gifts they won't toss aside as soon as they open them? We've got the goods: Maleden Invisible Ink Pens. These ...

Which invisible ink pens are best? Spies and conspirators have used invisible inks for millennia to send messages. In the modern age, invisible ink pens are an excellent way for grown-ups to ...

Ever get caught passing a note in class? Instead of swallowing the evidence, you droogs can just shred that little piece of your personal life, and your privacy will be intact with this ultraviolet ...

The Ultimate Spy Kit: Become an Electronic Super-Spy by David Eckold contains everything kids need to make simple spy gadgets. A plastic tray inside the sturdy box holds wires, headphones, a circuit ...