I'm tempted to put together an outfit based on Gil-Martin, a character from one of my favourite novels, 'The Private Memoirs and Confessions of a Justified Sinner' by James Hogg, first published in 1824. The story is set in the late 17th and early 18th centuries, and describes the downfall of Robert Wringhim, a fanatical Calvinist who believes he is one of the Elect, predestined to salvation, and can thus sin without fear of consequence. Gil-Martin subtly guides Robert to his ultimate ruin - and may or may not be the Devil, if he even exists outside Robert's imagination...
The descriptions of Gil-Martin's appearance mostly come from the section of the book narrated by Robert himself, and he is typically described as wearing a green frock coat and a turban:
'I put on [Gil-Martin's] green frock coat, buff belt, and a sort of turban that he always wore on his head, somewhat resembling a bishop's mitre.'
'...the frock and turban, which had furnished my disguise...'
'...a gentlemanly personage - green hunting coat and turban...'
I have several green frock coats, so that part's easy. The turban isn't described in any more detail, so could either be one of the loose, bag-like hats which were common in Britain at the time as casual wear, or something more elaborate, drawing inspiration from the contemporary turbans of Turkey, the Caucasus, Persia and India. As Gil-Martin's appearance is regarded as unconventional and noteworthy, I think I'll go for the latter.
Gil-Martin possesses (and persuades Robert to use) a variety of weapons over the course of the novel, and they are invariably described as being gilded or golden:
'[Gil-Martin] then produc[ed] two pistols of pure beaten gold'
'...when [Gil-Martin] joined me, and proffered me the choice of two gilded rapiers...'
'...the gilded haft of a poniard, the same weapon I had seen and handled before, and which I knew my illustrious companion [Gil-Martin] carried about with him.'
'...I was seized by the collar of my coat behind, by my dreaded and devoted friend [Gil-Martin], who pushed me on and, with his gilded rapier waving and brandishing around me, defended me against all their united attacks.'
I'm sure I can sort out something along those lines too.
Now I've just got to find time to sort it all out...