My husband is a fiberglass production/fiberglass repair man as well as a car/boat motor mechanic on the side so he buys alot of tools from Snap-On, which I have about wrung his neck several times for some of the things he's bought and the prices he's paid (I'm sorry but $250 is just too much for a set of wrenches or sockets!) But they do have a lifetime warranty and he pays payments monthly so I've gotten to the point that it doesn't bother me quite as much anymore, but he has a small Snap-On super bright LED flashlight that has has the rechargable battery packs that you can swap out with other tools that would be amazing for candling if I could find something to put around the end. Foam is a great idea, I think I'll try that next. I tried a gun bore light, lol, it was the perfect size but it just wasn't bright enough. I eventually used my cheap little $1 hot pink mini LED flashlight from Walmart that I keep in my purse on the occasion that I get home after dark and forgot to turn the porch light on before I left. I took a piece of cardboard to put between the light and the egg and poked a hole in it about the size of a pencil and candled the eggs while they were still sitting in the carton so I didn't have to move them around. I found that if I don't candle straight down and do it instead slightly off center from the top, like to the back or side of the top of the egg, I can see the air cells much, much better. I think I'd have had better results with the Snap-on light but with the eggs in the carton I couldn't move it around to the right positions without taking the eggs out of the carton and I really didn't want to move them a lot since they are shipped eggs. But all the air cells looked to be ok, this was my first time candling so I don't know much but they all appeared to be in good shape and attached to the shell pretty good and there were no saddle shaped cells, so I put the eggs in the bator yesterday afternoon and they are now on there incubation journey and I'm just hanging on for the ride, lol.