There was one on Pixie Market that was really expensive and a few, not quite as cool ones on Etsy. I never bought one and pretty much forgot about it, until I was at Spitalfields yesterday and came across Lulu O'Neil's booth, a 50-year old charming Scottish lady who makes burlesque-inspired accessories, where I found a version of said feather collar for a reasonable 25 squids.
Myspace page (Myspace? Hello, so 2006...) but I'm sure she would do a custom order.
In other news, I have exactly one week left of school! Terrifying. Where did the summer go? Its job hunting time again, sigh.