As of January 2016, the prices for resin toilet seat varied widely, ranging from just over $40 to more than $75. Resin seats come in a variety of colors and styles, and come shaped for use with elongated or round toilet bowls.
Overstock.com sells numerous novelty resin toilet seats, including one that appears to have dolphins swimming across its lid, several with seahorses and water plants, some with floral motifs, and others that appear to be embossed or made of marble. These range from $39 to around $50.
Wal-Mart sells resin toilet seats with many of the same design themes as those found at Overstock.com, with prices ranging from approximately $40 to $75.