To create the HDPE lamp described, you'll need the following tools, software, hardware, and materials:

### Tools

- HDPE bottle cap collection (local sources in Donostia/San Sebastian)
- Plastic shredder for processing caps
- Color sorting system for translucent/colored caps
- Injection molding equipment with 3mm-thick molds
- Spray paint for wooden components

### Software

- CAD software to modify wooden clamp designs (drawings included)

### Hardware

- Laser cutting machine (available at local makerspaces)
- Injection molding system for disc production
- Standard lamp holder and bulb assembly

### Materials

- Transparent/colored HDPE bottle caps
- Shredded colored plastic (3-4g per disc for tinting)
- 1 cm thick wood sheets for clamp construction
- Spray-paintable wooden components
- Adhesive (optional reinforcement)

The lamp's modular design allows customization using locally available materials and makerspace equipment. Total material per disc stays under 30g HDPE with <5g color additives[1][2][4][5].