This is a great topic. I learn so much when everybody gets into the details about what does and does not work for them and why. I am not ready to rehome my errors yet, so advice is welcome, but if all you have is sympathy, I'll take that too.
This one I still hope I can reclaim: Au de la cinq mers, in gold, black, and what I hoped was a wine color but is oranger than I thought. The pics in this current ebay listing get the colors about right, though you can't see that there are some highlights that are traffic-cone orange, yiikes:
I wanted a regal scarf, and it is regal. But I didn't know yet that a black border gets lost in my black wardrobe (thanks again for that insight, ElainePG) and that I prefer a pattern that goes all the way to the hem.
I thought either the gold wouldn't be too bad on me or -- ha ha -- that I could diminish or hide it (there's your "WTH was I thinking???" Hide it with what? A false beard?). But the beauty of this one is in the wonderful detail, and if I scrunch it up to hide the gold, then it's just a black border with some mustardy bits and what's the point?
I do get compliments on the details when I wear it in a draped bias fold that shows off the ships and fish and fabrics, but it's hard to make myself wear it when I have so many others that look better on me.