Hobbies And Interests
Home  >> Toys >> Childrens Toys

How to Make Your Own Spy Equipment

The success of your missions will often depend upon your ability to send and receive secret messages. Invisible ink is the solution, and very important equipment for a good spy. You'll be able to disguise your messages to fellow spies with this ink. And if your note happens to fall into the wrong hands, the enemy will think it's a harmless, ordinary note -- not a top-secret communique.

Things You'll Need

  • Regular pencil or pen Plain white paper Lemon juice Toothpicks Cup or bowl A candle
Show More

Instructions

    • 1

      Write a misleading message on plain white paper using a regular pen or pencil. It can even be a silly note, story or poem. The purpose is to confuse enemies that might accidentally get their hands on it. Make sure that the ordinary ink dries completely before you begin using the invisible ink.

    • 2

      Pour some lemon juice into a small cup or bowl. Dip a toothpick into the juice and write your real message on the note with it. You can write in the margins at the top, bottom and sides of the sheet, and even in between the lines written with regular pencil or pen. At this point, you will probably still be able to see the words written with the juice. But when you're all done, only the authorized recipient will be able to read it.

    • 3

      Let the lemon juice dry completely. Just set the paper flat on a table top where it won't be moved around. Your message will begin to disappear as the juice dries. If writing is still visible after it has dried, add some water to the cup of lemon juice and try it again with a new paper and message.

    • 4

      Get a grownup to light a candle for you. Hold the message face-up over the flame to heat it, but not close enough to burn it. The lemon juice will darken when it's heated so that the invisible ink can now be read.


https://www.htfbw.com © Hobbies And Interests