I don't remember using them, but it's possible that I used only the two on the right as a color palette once or twice. I haven't used them for creating artwork. The three on the left are completely unused, but they were stored in the same case as other molds I use. Silicone mold set with various shapes, perfect for resin crafting. - Mold types: Star, heart, hexagon, circle, square - Material: Silicone - Application: For resin crafting Thank you for looking.