It already is the special occasions collar, as well as several others. My dog has a few collars to swap between because he damages them and I like him to have variety.
Funny thing about the suede collar is it's made his neck pink in dry weather so I guess it was his natural oils.
And he wears his collars loose around the house because he's always had fur rubbing problems, they're only the proper tightness when we go for a walk.
I might try vinegar on the collar anyway, just to see
Thanks for the advice