Robert Vivian occasionally distributes postcards from small towns, and asks each student to write a note on that card to a fictional recipient. Look at the postcard and imagine you’re traveling across the country and you’ve landed in this small town. Use the postcard as a trigger and write to someone. It could be someone who’s wronged you in the past or it could be a beloved person. You might be writing this postcard due to a situation that you’re fleeing. “Dear Randy. Hello from the middle of nowhere. I’m in a diner. Icicles are hanging down from the roof. I’m driving to Santa Fe. I have 20 dollars in my pocket. I can’t stop thinking about the last time we spoke…” Etc.
I love this writing prompt found on the following site http://writethebook.podbean.com/
I might even try writing it from one of my character's POV, the possibilites are endless.