After a trip around Hoods Canal in Washington yesterday, where we could see the snow topped caps of Mt Rainer, Olympics and Mt Baker, we stopped at Hamma Hamma Oyster Company. We have finished 2 dozen Hammas and 1 dozen Blue's, now what to do with the shells? Anyone have an idea? Cannot put on driveway, may slice tires, but may use in the bottom of pots for drainage?