Sorry I don’t have step by step pictures.  I made these a few years ago before I even considered having a blog and posting things.   Hopefully my description will be enough.  

I used a toothpick to punch a whole in both sides of the eggs and then blew out the insides.  I then rinsed them with water. 

I  placed them in warm water with blue food coloring.  Since I took out the egg I didn’t need to have boiling water. Once they were the color I liked I removed them and let them dry completely.  For some of the eggs I made the whole bigger so that I could stick flowers or candles in them..   CAUTION…….. Candles were a bad idea.  Who knew and egg shell could catch on fire so quickly .