Seashell Dinnerware. Add a coastal vibe to your tabletop with nautical sea shell plates featuring glamorous conch shells illustration on a white background. 10" dinner plate manufactured from revolutionary ThermoSāf® Polymer resin that is safer and more versatile than Melamine plastic. Safe, re-usable plastic dinnerware. Perfect for outdoor dining. Our beautiful dinnerware is custom-printed, made-to-order. Fantastic wedding gift or house warming gift! Browse our coordinating serveware and linens.