Honestly, I can't say I'm going to give you an idea for a story. Bloodshot hit the nail on the head - you should be able to come up with your own story from a grain, and build around it. Don't rely on people to say, "Make a story about dragons with laser-eyes." If I were to do that, I couldn't say I would genuinely feel that what I made was wholly my story.
What I suggest is picking up some books that interest you, read them, and consider what aspects of them you enjoy. What would you do differently? What didn't you like? While this doesn't guarantee inspiration, it gives you a lot of good ideas about what you might want to write and what your style might be like. Taking ideas can go too far, though, and you can become far too defendant on one writer.
Take the webcomic
Dominic Deegan for example. While I don't want to detract from the artist's ability to change the overall flow of the story, the amount of ideas he has taken from the novel series
The Dresden Files is sitting within eyeshot of the line between creative license and plagiarism. Examples:
The Dresden Files first made mention of things like divination rods, Second Sight (an ability wizards in the books have), hexes, and the overall theme of the story surrounds a self-narrating detective named Harry Dresden. He advertises his services in the Chicago newspapers as "Harry Dresden: Wizard for Hire."
In Dominic Deegan, or as much as I could stomach, he takes these themes and nearly copies and pastes them. Immediately there is mention of Second Sight to find the architecture of a hex he's under (something originally from Dresden), divination rods are present and named such, the character is an
oracle rather than a wizard, but he goes under the same advertisements as "Dominic Deegan: Oracle for Hire." And he's a private investigator same as Dresden.
Ugh.
My point is, don't get too reliant on other people for your ideas. I suppose I used this as a place to vent my frustrations at finding this nearly-plagiarized webcomic, but at least it's relevant.