One of our girls, Clara, just laid the first egg yesterday and laid another today! I feel another egg coming from her and/or Fiona tomorrow. Since they lose calcium with each lay, I want to give it back. I hope to eat the 2 fresh eggs tomorrow and feed them the shells, but we only have 2, the rest are from the store. Will they be fine if I feed them the shells from the store? We do have a treat bag that contains calcium too. Also, can ya'll give me any easy methods to prepare the shells?