| 1. 3D Glasses Direct |
| Manufacturer of 3D Glasses including fireworks glasses, solar eclipse viewers, and holographic diffraction grating films. |
| http://www.3dglasses.net/ |
| 2. American Paper Optics |
| A manufacturer of 3D and novelty glasses. |
| http://www.3-dglasses.net/ |
| 3. Fireworks Glasses.com |
| Holographic diffraction grating lenses for viewing fireworks displays, laser light shows, holiday and city lights and for the study of light and color. |
| http://www.fireworksglasses.com |
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| 4. Rainbow Symphony Inc. |
| Manufacturers of 3D glasses including fireworks glasses, solar eclipse viewers, and diffraction grating films. |
| http://www.rainbowsymphony.com/ |
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