I still prefer the classic way of doing this kind of things, i mean i want real eggs, real red colored in my house. Some USB powered easter eggs are not gonna change the mood in my house. But if you would like some new ideas, you could approach this. Basically inside the eggs are a bunch of LED’s tied together that draw power from an USB port. It’s so simple that you can build it yourself, you just need some pieces of white plastic shaped like eggs, place some colored LED’s inside and their you have it USB powered easter eggs. Or you could just buy them from the store.
USB powered easter eggs: [Link]