Here's a fun way to send a message to someone special. Write it on a banana! It's simple and only takes a few minutes, but would be a thoughtful surprise for the recipient. To inscribe your message, use a dull pencil rather than a really sharp one. Press down just enough to make a mark on the banana peel, but not enough to puncture through it. It's kind of like a secret message because it won't show up right away. As the banana ripens, the message will get darker. Wouldn't this be perfect for a kid's lunch to take to school?
Inspired by this pin for writing a secret message on a banana.