Here are the relevant references grouped by category from the provided search results:

## Articles

- ~~[15 pieces of recycled plastic furniture for sustainable design](https://www.archiproducts.com/en/news/15-pieces-of-recycled-plastic-furniture-for-sustainable-design_101279)~~
- [Paolo Cappello transforms plastic waste into playful furniture objects](https://www.designboom.com/design/paolo-cappello-plastic-waste-furniture-objects-miniforms-superpop-06-22-2023/)
- [Recycled Plastic Furniture - Eureka Direct](https://www.eurekadirect.co.uk/Facilities-Management/Recycled-Plastic-Furniture)

## Books

- [Extrusion Dies for Plastics and Rubber](https://www.barnesandnoble.com/w/extrusion-dies-for-plastics-and-rubber-walter-michaeli/1101463047)

## Papers

- [Paper and Plastic Waste Composite Boards for Furniture](https://www.swst.org/wp/wp-content/uploads/2020/07/poster_SWST_20_Sobotkov_.pdf)

## YouTube

- [Protecting environment by recycling plastic wastes & creating eco-furniture](https://www.youtube.com/watch?v=Edq13wn1j3U)

## Open-Source Designs

- [Nosigner: Open-source furniture for Mozilla Factory](https://www.designboom.com/design/nosigner-mozilla-factory-japan/)

## Manufacturing Guides

- [Plastic Extrusion Technology Overview](https://xometry.pro/en-eu/articles/plastic-extrusion-overview/)
- [The Versatility of Plastic Extrusion](https://www.sct-straw.com/en/news/184-transforming-your-home-the-versatility-of-plastic-extrusion-in-furniture-manufacturing)
- [Plastic Extrusion Process - Elastron TPE](https://www.elastron.com/en/what-is-extrusion-plastic-extrusion-process-elastron-tpe)