2 VTG New Ceramic Tile Trivets Mallard Ducks Jasco Cottagecore Grannycore Birds New vintage stock. This product is a set of 2 vintage ceramic tile trivets featuring a mallard ducks pattern, square shape, and multicolor design. Made by Jasco, the trivets are heat-resistant and easy to clean, perfect for adding a touch of cottagecore style to your kitchen. The trivets also include hangers for convenient storage and are hand wash only. Originating from Taiwan, these original pieces are a unique addition to any country/farm-themed kitchen decor.