Here's an interesting technique I discovered...
- take a roll of film and leave it in the freezer for a good 2 days
- before loading into your camera, vigorously rub the film canister along a wool carpet to build up static electricity
- load into your camera and use a fast motor drive to further increase static build up along the canister's felt liners
- shoot on a nice cold, dry winter day!
You never know what you're gonna get!