More Sea Turtles Tile Coaster by CafePress . $12.50. 4.25" x 4.25" and 1/6-inch thick. Dishwasher safe. Ceramic. Not for use with abrasive cups and mugs. Four felt pads protect your furniture from scratches. Love Sea Turtles? Interested in Sea Turtle Rescue? Just want to show support for Sea Turtles? Original Artwork by Artist Jo Lynch, printed on a variety of gift items for the gentle sea Turtle Giants.