All the parts are designed to be sewn on. Mutt Cutts Sign: The part is intended to be printed in 4 different colors. First color (White) are layer 1-3 @ 0.3mm layer 1 and 0.2mm layer 2-3. Second color (Yellow) are layer 4-5 @ 0.2mm per layer. Third color (White/Grey/Glow-in-dark) are layer 6-7 @ 0.2mm per layer. Forth color (Black) are layer 8-9 @ 0.2mm per layer.