I don't know if this will be of any use to you... but there are some really awesome sounds you can make if you crunch the bow down hard on the violin string just right, and if you have a quick enough wrist, the sound is just amazing.

If you could recreate that on guitar it would probably be neat. It'd take a scratchy sound and maybe some harmonics or string dampening... don't know how you'd go about it technically as I don't know crap about electric guitars. I wish I had a recording of the chopping sound I'm talking about so you could actually hear it. But I think it'd be cool to do this choppy, confused sound then break into something smooth and drawn out... would probably be neat on an electric guitar if done properly.