## YouTube

- [Beginners' Guide to Melting HDPE](https://www.youtube.com/watch?v=-igxhoGEQFU)
- [How FREE Plastic Waste Can Be Turned into Pens](https://www.youtube.com/watch?v=VNiHWN1Oc5M)
- [Making Pen Blanks from HDPE](https://www.youtube.com/watch?v=nsPvmZN3mBo)
- [DIY Plastic Recycling Machines](https://www.youtube.com/watch?v=q8ZyUsKWpD4)

## Articles/Tutorials

- [Make a Pen from HDPE#2 Plastic](https://www.instructables.com/Make-a-YWCA-Pen-From-Recycled-HDPE2-Plastic-Laundr/)
- [Waste Pen Process Explained](https://woodengiftsandmore.shop/about-us/blog/waste-pen/)
- [HDPE Pen and Pencil Set Tutorial](https://www.instructables.com/HDPE-Recycled-Pen-and-Pencil-Set/)
- [Pen Blanks Creation Guide](https://www.instructables.com/Pen-Blanks-1/)
- [Quality Assessment of Recycled Pens](https://www.johnshenstationery.com/How-to-judge-the-quality-of-recycled-plastic-pens.html)

## Open Source Designs

- [[filtered] Project](https://www.youtube.com/watch?v=q8ZyUsKWpD4)

## Technical Guidelines

- [APR HDPE Rigid Design Guide](https://plasticsrecycling.org/apr-design-hub/apr-design-guide/hdpe-rigid-colored/)