Super quick one today. I will post some video related to this in the coming days but right now I'm having some computer issues which are limiting me. Hopefully they'll be fixed soon.
Take any beat you normally play (say some sort of standard rock beat) and on the back beats try buzzing one of the strokes on the snare rather than playing it straight up, Try it on 2 only, then four only. Then try it on the downbeat strokes on the hi-hat (you'll probably want to take this at a pretty slow tempo).
Okay, try the same thing except use a deadstroke ( pushing the drumstick into the head and leaving it there). Again, try it on different parts of the bar or on the hi-hat. The cool thing about this (at least on a drum) is it will deaden it yes, but also raise the pitch a bit.
Finally, mix and match this stuff. Remember, changing how you articulate any rhythm is a great way to create variety.
Okay here's some footage of Paul Motian's Electric Bebop band. It doesn't really have anything to do with this post, but it's awesome, and you should see it! :)