How To Make A Water Bottle Bomb

Put about a cup of vinegar into a water bottle, next put about two tablespoons of baking soda in a sheet of paper towel and wrap it up tightly (I find paper towel works better than plastic wrap), Next drop the paper towel into the water bottle and screw on the lid as fast as you can, then shake it up and throw it down(I have tried throwing it up and it just cant get the momentum that it needs to explode).