Early in life, I exhausted the sartorial possibilities available in menswear. I recently showed you my neckties which are my primary area for creative expression. http://shybiker.livejournal.com/29150.html
Here is a second area where men can play a little: shirt-cuffs. I love cufflinks and they come in all kinds. I even have one imitating a speedometer! (They are the blue ones shown below.) I got those cufflinks when I started riding motorcycles.
To wear cufflinks, you need to get shirts with French cuffs. They're not easy to find these days since most men don't wear them. Regular cuffs have a button and hole; French cuffs have just holes into which you insert the cufflinks. (They fold over so there are actually four holes for the cufflinks to go through.)
I've never seen a woman wear French cuffs but I don't see why one couldn't -- if you're wearing a men's shirt, what's to stop you? Would you wear one?