Beyond Easter, imagine all of the themed sponge routines one could create... tell a story about a hen who lays golden (yellow) eggs or patter about eating green eggs and ham (i.e Dr. Seuss).
But that is just the beginning! Apply a little more imagination and these eggs can become so much more... baby flamingos (pink), water droplets (blue), dinosaur eggs (purple). You get the idea.
Make them appear, disappear, multiply, change color, and more!
They are sold in assorted dozens (including 2 of each color: red, blue, green, yellow, purple, pink).