My son loaded the image of my Zombie Message banana I gave him onto facebook. His description of the photo is "Evil message my mom wrote on a banana." HA! I didn't actually think it was evil, but when I asked him did he eat it, he said, "well, YEAH, what did you think?"
Then magically, it appears the next day. If you use a slightly ripe banana like I did, the writing shows up darker and quicker.
Photos from the Kitchn Blog, which has some great ideas and recipes!
Banana inspired fiber!! Ok, not really. It's actually lemon curd inspired, but it's the only yellow stuff I've got!