A fantastic seashell for beachcombers to pick up is Sanibel's infamous scallop shell. You'll find the strawberry colored ones in abundance. The patterns never cease to amaze me. Rare finds include the orange, yellow, gray, black, and all white scallops.
I've been in love with having sand between my toes since I was a teenager taking the ferry across the bay to arrive at Presque Isle State Park (aka The Peninsula) in Erie, PA.