Make beautiful mermaid tails with this handy JEM pop it cutter set Fish Tail. With this JEM Pop it Fish Tail set you can make decorations of gum paste, modelling paste and fondant. The JEM Pop it Mould is a cross between a cutter and a mould. Create lovely fish tail sugar decorations for a Mermaid themed cake or underwater Cupcakes. The pop it mould range are hard plastic cutters that have deep impressions to create additional embossed details on the final decoration, just like a mould.