Photographers are familiar with the ring light, which produces a pleasing ring-shaped highlight, or “catchlight,” in a subject’s eyes. It’s often used in the fashion industry to create images you see in many magazines. The Square Ring Light is just like that — except it’s a square. I find it makes a unique, almost otherworldly catchlight that really draws attention to the eyes.

You’ll need 2 speedlights (electronic flashes) as the light source. The rest of the project — the ring light modifier itself — costs just a few bucks. For this build, I’ve gone back to my trusty foamcore and duct tape. The entire project can be put together for $15-$20, minus the speedlights.