I took 2 caribou scapulas from last years caribou out of the freezer. They were slow boiled until the meat fell off. Then they were oven dried on low heat. I will use the peanut grinder and file to smooth out the knuckle area so they are easy to grasp. A hole will be drilled in each one of them and a length of tuna cord will be tied to them. They will go around my neck like my mittens did when I was a toddler. I will scrape them against brush and each other this fall when I am on the Koyukuk. I have found nothing that makes a better sound and they are light weight. It is my wife's favorite "moose call" and besides, they look really cool. I will take any caribou scapulas you plan on throwing away.