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 ...

The incurable hotness of French Author Herv Guibert owes nothing to the timely and shattering content of his mind and the publication of a most original work: Written in Invisible Ink. Guibert died of ...

For a long time, seeing those words pop up onscreen was the best indicator of good gossip to come. Close seconds included “OK, so…” for the more demure among us, or a simple teacup emoji for the ...

Does it count as vandalism? What if it’s funny? By John Hodgman Jim writes: We recently remodeled our kitchen, and my 10-year-old son wrote, “Are you eating cereal?” on the new countertop in invisible ...

The Secret Intelligence Service (MI6) experimented with semen as a form of invisible ink, a recently-published diary entry has revealed. Walter Kirke, deputy head of military intelligence at GHQ ...

In this challenge, I used a Smiggle Spy Pen to draw a full doodle using invisible ink that only appears under UV light! 🔦🖊️ Drawing without seeing the full lines in real time was tricky—but the ...