Okay, so you beautify (I use the word loosely ;-)) a harness with turquoise-and-gold-sequinned trim. Or something...

It might be a whole lot easier than a harness simply to make yourself a neck thingy that fits you properly. I did fine with wire coat hangers many years ago when I made one to hold my kazoo. I don't weld so I used cotton string soaked in white glue to make joints. IIRC an elastic band attached the kazoo nicely to its mounting, with another elastic band over the mounting first to ensure no buzzing from kazoo vibrating against coat hanger. I crocheted over the whole frame to make it look uniform and tidy. Quite serviceable, although not collapsible.