Chicken Obsessed. All the little bottles of paint are good for your eggs, it depends on teh finish you use on them to the depth of color you have. Mod Podge is a good finish but it really never hardens enough. It will get softer with time. Use triple thick on your eggs. It's a very very thick finish when you paint it on, but it gives you 3 coats of finish in one. And it levels out by it's self.