For the one, the true, the original, the only Ambermush, indulge yourself just a little. Go on. It won't hurt. Honest.
Trust me. I play Amber.
And on it, I play Tarot, my original character and still my favourite: Autumn of House Uoknor,, a lady out of Chinese fantasy with a taste for wine and Serpents: and on occasion the Cult of the Ubiquitous Unicorn, fanatics sans all intelligence and with a habit of attempting to kidnap Benedict for sacrifice - well, at least they have good taste...
You could, on the other hand, investigate the mysteries of Patternfall, where the universe writhes in turmoil after the end of the Great War. Strife. Fury. Treachery. Etcetera. Don't forget the etcetera.
On it, I have been known to play one Sand,, Queen of Corilaine and Princess of Amber, whose fondness for her relatives goes past all words (not that that stops her.)
I have also written a fair amount of poetry regarding Amber (and a few other bits), both regarding canon book characters and campaign or Ambermush characters and situation: I plead only that the situation inspires the words. Also a play, The Tragical History of Eric, King of Amber: what do you read, my lord? Words, words, words.
Or there's a PBEmail Amber game that I'm involved in with friends, with a particularly twisted premise (go look and find out): Seasons of Change:a strange story, strange people, strange worlds...
Here, a page by Deb Atwood, friend and fellow RPer. Melisanthe to my Maya. Don't ask.
Just to be thoroughly international, here's a page from a friend in Australia: have fun.
Or one could go looking for interesting and exotic quotes. Amber-related, of course. Such as may be found at a certain quiet place, along with much other interesting stuff. Knock three times and wear a silver rose.
More will, of course, be added as and when I think of them.