You can easily coat your rolled truffle balls in the desiccated coconut by placing the coconut onto a flat plate or surface (like a dinner plate or pie plate). Then take the sticky rolled balls and roll them gently through the coconut. They should be sticky enough that they grab onto the coconut while being firm enough to hold shape. After the balls have been chilled you can gently roll them again in your palms to help adhere the coconut if desired.