Dye with ease using the iDye Poly Dye, Lilac- 14g. Comprised of for synthetic fibre, polyester and nylon this incredible dye can even work on some plastic buttons, frisbee discs, dolls and 3D printed objects. The dye comes in a dissolvable packet, so there are never any messy powders to handle, simply drop the packet in a pot of water, add your fabric and bring to a boil.