Call a reloader in your area. You will get more than scrap and they will go back into circulation. If you are really industrious, separate them by caliber, then sell them to someone who reloads. Go to a local gun shop and ask if they know anyone who is interested in the shell casing calibers you have. DO NOT GIVE TO COPS. IF YOU ARE GOING TO GIVE AWAY, GIVE TO A LOCAL GUN SHOP.