Greg, I think paint would ruin it too. I bought the black pipe tee for the nice finish it has. The galvanized reducer/socket holder is a little too bright and clean, but I couldn't find it in black pipe form.
This is just my first attempt and I already have some improvements in mind should I make another one.
I'll post pictures when it's hung up and working. It's wired and ready, but I need to get a retro bulb for it.