Eyeball Eggs

I first made these as a teenager: I drew eyes on a dozen eggs, put the carton back in the fridge, and waited for my mom's reaction. She never said a word. (I think she might have been a little exasperated with me at the time.)

If eyeballs aren't your thing, you could make ghosts:

I made these eyes with washable markers, so I could rinse away the ink before cracking them open, and used a bolder Sharpie for the ghost. Decorate a hard-cooked egg and tuck it into a lunchbox — or leave a surprise in the egg carton for the next person to make an omelet. Boo!