I prefer style over fashion, and I have an absolute disdain for the fashion industry, but I love Project Runway - basically for me it's all about the creativity. I don't think of myself as straight-placed, but others probably see me that way. At heart, I am a Bohemian.
I would say that the stereotypes you've heard about people who practice polyamory are quite inaccurate because they're likely based on a very narrow slice of the general population. Poly isn't that weird - it's just a simple thing, really.
Nobody needs to be weird to manage having more than one love relationship. People have been doing it for centuries and considered quite normal - only it was cheating, not poly. All polyamorists do is lift the veil of deception and accept/embrace what's going on.