How to use leftover colored pencils to turn waste into treasure and DIY a beautiful necklace. Don’t throw away the leftover colored pencils that you usually use. Collect them. In addition, prepare colored ropes, hacksaw blades, and small electric drills. For specific production methods, please refer to the picture. It is a very environmentally friendly and practical handmade craft. I highly recommend it to you for craft work. The final finished necklace is very beautiful. It is most suitable for children to wear!