This is an empty 1 Liter Coke bottle, with just a dash of black powder added. I feel this is a much safer alternative than a Drano or Dry Ice bomb considering those have no fuse, and Drano bombs contain hazardous materials. This is also probably louder since it is a much faster reaction. I personally have never made or seen a Dry Ice or Drano Bomb go off so I can't say this for sure, but these are damn loud...

Since this video was shot on a Digital Camera the sound and video quality might not be the greatest, but you can still tell it's a fairly violent blast.

Enjoy! (less info)