If you're looking for a little weekend craft project with the kiddos, and have already have some Easter egg shells on hand, you should totally check out this Egg Shell Flower Art Tutorial from This Little Miggy.
Besides the difficulty of being on-the-ball enough to already have dyed Easter eggs, the whole thing is pretty simple:
And at the end you get awesome kiddo art like this:
For all the steps and details, make like the Easter bunny and hop over to This Little Miggy. And then don't forget to come back over here and tell us how it went!