I needed a bar light for a sports/fitness photoshoot I'm doing for a couple folks in the shop who want to highlight their "gains" from this deployment.
However, youtube tells me that in order to really highlight muscle definition you need really directional light. Ideally a bar light because you also need your directional light to be diffuse. (Oxymoron, but there it is.)
Obviously I don't have a bar light over here, so I made one out of some cardboard, some tinfoil, and a couple AAFES bags.
The second photo is taken with it in ambient daytime light with a very small aperture.
I'm looking forward to seeing how it works out.