Maybe you could pick a book that you like and write a fanfiction that takes place before the book began, to explain something that the book didn't explain. I've been thinking about doing that, but I've never written a fanfiction and I feel like it would be weird...
When I do some writing, I usually do either:
1. A mystery story.
2. Stories about my dogs. I find that pets give me a lot of funny items to write about.
I don't haven any ideas in particular but when I feel low on ideas I usually go onto google and search up 'fantasy' and then make a story based on one of the images. Usually works as a good warm up.
Or I write a story based on a song.
Just look around you and see if there's anything that would give you inspiration. That's what I've done before. It's helped me out with my story that I have on my Google Docs that's 130 pages long, lol!!XD
But just see if you can get any inspiration from any everyday things that you see everyday. Either that, or things that have happened to you in the past that's worthy of a story.
The best way I come up with stories when I'm stuck is to take an event from my life, then expand on it. You can make this event so outlandishly exaggerated and add fantasy to it, or keep it pretty true to the source, and it'll be easy to write because you have personal experience about the basis of the event itself.
Works every time :P
