What can I do with oyster shells? - PaleoHacks
Sep 12, 2014· We dump them out near our dock to create a little oyster reef - it creates a habitat for crab, for which we have crab-pots (YUM!). Also, if you dry them out and crush them, they make a great permeable surface for a driveway, pathway, perimeter around the garden, etc. You can use crushed oyster shells instead of gravel.