Pick a type of fae and change it to make up your own version. You can use the old stories as a starting point. Then, give it your own twist. Decide how the court(s) works, what magic your fae can do, how they relate to nature and the modern world, etc. Maybe this picture of trees in Ireland will inspire you.
Next, make up a character who is one of those fae and put him/her in a U.S. pub on St. Patrick’s Day. Is it just me, or does that sound like instant fodder for all kinds of conflict? 🙂 Happy St. Pat’s!