Egg decorating couldn't get much simpler than this method: all you do is apply stickers to your egg before dyeing to create cool shapes and silhouettes.
Apply stickers to the eggs, taking care to completely press down all the edges.
Dye the eggs, then let them dry completely, about 5 minutes.
Remove the stickers. Use your finger to rub away any residue. (Rub more stubborn bits of stickiness with a drop of vegetable oil, then wipe clean with a paper towel.)