Rubble on a street; suggestions please

I’ve made several clunky attempts at doing this and so far have not accomplished what I’m after.


There’s a sample of what I’m trying to do. Anyone have any clever ways of doing that without modeling (yeah, I tried that) every piece of gravel?

Any suggestions welcome

particles!
look for a tutorial on adding grass to a scene, that will give you plenty of ideas. Just substitute the grass blades with gravel.

Definitely particles. 40k faces so far, mr Hand (was this a hand?) included. You could add a lot more.
http://www.pasteall.org/blend/28459