If you have egg size plastic eggs which have been and are sold by the dozens......most of them open in the center. They can be made into decorative eggs by taking your tiny glue gun and make circles, lines, squiggles, poka dots etc. on the eggs, let them dry and then paint them with your tempura paints or spray paint and they make a "presentable" egg. Doing this you can cover the opening in the egg. I also take the plastic eggs and cut stripes or pieces of good foil wrapping paper (bright purples, pinks,etc.) and cover them with that. Some of fancy older Christmas foils worked well. Might take a wee bit of practice but has worked for me.