I know I was! I started looking at reenactment sites and the like to find out what soldiers of the 19th century were wearing. One of the hats that I thought had great steampunk potential was the foraging cap as used during the US Civil War. There are replicas available online, though they tend to be expensive, and I had trouble sourcing one in "steampunk-friendly brown" (yes, that is an official color).
So I went looking for patterns to make my own. I had no luck finding any. I thought that perhaps I could perhaps find a pattern for another type of hat and adapt it, but as it turns out, hats are surprisingly complicated things, and at this point I had never even touched a sewing machine in my life!
So I started mulling it over in my mind.. how hard could it be? They're little more than baseball caps, how complic... hang on!! Baseball caps! Of course! I can just cheat and modify one of those instead! Here goes!