They are really easy & quick to do, you just need a flannel, 2 elastic bands, ribbon, googly eyes and an egg of your choice.
Roll up the flannel and then gather with 1 elastic band, then gather again a little bit further up so you have a place to put the googly eye and fasten again with an elastic band - then add ribbon of your choice and pop your egg in the middle.
I shamelessly pinched this idea from a little stocking filler the boys got at Christmas where there was a bathbomb in the middle, but thought it could easily be adapted for easter.