It's a great project for those rainy April days. My sister, aunt, and I spent a whole afternoon making these together (makes me wish I was back in Oregon).
This project really is not that hard, but it might take some time to get the hang of hollowing the eggs.
First make sure your egg is nice and clean.
Now, by carefully holding the egg over the bowl, gently blow into the smaller top hole. It's ok to blow harder (the egg will be fine). What's left of the egg yolk should come out pretty easily. (if not, try using the sewing needle to make sure the yolk is broken). (Still having problems? Carefully make the bottom hole bigger by chipping the edges away with the pushpin).
After the glue has dried, add a full layer of mod podge on the egg. Allow to dry.