Since some of the Easter eggs were bright colours, paint with two coats of brown craft paint. Or start with colour like orange, or yellow.
Add a layer of fabric over the egg to create the bottom section of the acorn. Cover just about ⅔ of the egg with the fabric. Use hot glue to hold the burlap in place.
Next snip the tips of a pine cone off, using some heavy scissors. Then hot glue them around the top of the egg, taking care to overlap the fabric and create a neat edge. Layer the pine cone pieces like shingles. I did three layers.
Finish off the very top by hot glueing a twig in place.