I finished another bow tie using a polyester brocade. The fabric was thicker and seemed to fray easier. I used a sheer cotton as a sewn in interfacing.
After this tie, I made another from a light satin. And then from an even lighter silky rayon. I discovered the interfacing was not substantial enough to support the bow shape for more than an hour without adjustment.
I have another four pieces of fabric to experiment with. I haven't figured out how to iron the seams better, but I was starting to use a wood point press which seemed to be better than walking out the seams with my fingers.