Ever wanted to be a secret agent? Now you can take the first step by learning the craft of secret message writing. Kids of all ages will thrill at sending invisible messages to their friends.

What you'll need:

How to make it:

1. Write a message on a light colored card with white crayon.
2. Send it to a friend with a box of water color paints. Include a note telling them to paint the card to read a secret message.