Using Diffraction Glasses as a Simple Interactive Event Feature

https://polarizedviewing.northstarcolumn.com/posts/choosing-red-cyan-glasses-for-promotional-campaigns-and-giveaways

Using Diffraction Glasses as a Simple Interactive Event Feature is easier to understand when the viewing goal is clear. 3d fireworks glasses are only one part of the full experience. The setting, fit, storage, and user steps also matter