Impact Smoke Bomb #1

This is my current method for making impact smoke bombs. They're made similarly the type found in other youtube videos. It's not a great design, so I'll probably have a video of an improved version soon. By the way, I accidentally way under exposed the high speed footage as you can see. It looked decent on the camera playback (I was intentionally under exposing it a little) but darkened as soon as I loaded it to iPhoto. This happens regularly when using this camera (Casio EX-F1). If anyone has any idea why this happens, leave a comment.