I just now called the local McDonald's restaurant and asked for the manager. I explained to him that I had six chickens and how some were beginning to lay eggs. I asked him if he would ask the grille people to save me their eggshells. I told him that I would pick them up anytime he wanted me to. I'm going in today after 11 A.M. when breakfast ends. I'll probably get a year's supply in just a few days.