Merch › Purmaid Coaster Image 1 of 1 Purmaid Coaster £7.50 Ducky the cat featured as a MerKitty! Mermaid realness with a dash of feline.Cute coaster for all your quacky needs. Purchase Added! Ducky the cat featured as a MerKitty! Mermaid realness with a dash of feline.Cute coaster for all your quacky needs.