Arrange spring flowers in egg cups and then display the mini bouquets on cake stands. I don't have any egg cups right now, but I would be willing to buy some to make this :)
Peonies are my favorite flower, but tulips are a close second! I love how the tulips actually do look like eggs when they are grouped close together in baskets like this :)
Of course I could also forgo flowers entirely and go with a centerpiece of Easter candy. I'm totally OK with that :)
(images from Martha Stewart)