Seashells from the Seashore

To call this a DIY project is a bit of an exaggeration, as nature did most of the work. Walking alone the shore at low tide, I found something I've never seen before: shells with little holes already formed in their tops. Since nature had done the delicate drill work for me, I just strung them into simple pendants with a bit of crochet string. Could there be a more perfect accessory for a day at the beach?