New Age Enclosures - They will usually send you free samples if you ask.
Teko Enclosures - Excellent quality, and very generous with samples. Fast, free shipping on all samples.
Stahlin Non-Metallic Enclosures - heavy-duty outdoor waterproof enclosures. PVC or fiberglass reinforced polyester. Some come with a completely transparent polycarbonate lid or a lid with a transparent polycarbonate viewing window.
Hammond Manufacturing - Versatile boxes, great service for adding custom machining to standard parts for moderate quantities. Transparent boxes make holes unnecessary for LED indicators, etc.
Envision Plastics & Design Uses NMR Technology (No Molds Required) to manufacture custom plastic enclosures for a variety of applications.
- The Electrical Wholesaler: splashproof boxes for bathrooms and kitchens, and weatherproof boxes for outside use.
- ip67 enclosures. www.aliexpress.com/ip67-enclosure_price.html
- Craig at Built-to-Spec put his design files for a BeagleBone enclosure on Thingiverse so anyone could make one from transparent acrylic with a laser cutter (or whatever color you want).
- Mike Doell designed a transparent plastic enclosure for Adafruit to hold a BeagleBone Black
- Pazdan makes enclosures milled out of solid aluminum for Adafruit to hold a BeagleBone Black
- Logic Supply designed an enclosure for the Beaglebone -- steel with orange or textured black paint.
- Dr. Patrick Hickey. "Space Station modular enclosures for Arduino & Raspberry Pi".
- "Clear Enclosure for Arduino"
- "Arduino Project Enclosure"
- "Dirt Cheap Arduino Enclosure"
working with acrylic
"DIY Acrylic Refugium" describes how to make an acrylic enclosure.