How cool are smoke grenades? You toss 'em into the air and they explode into a vision of thick clouds and smoke, preventing your enemy from seeing you as you stealthily sneak past him and shoot him upside the head with a paintball gun.
The great thing about smoke grenades is that you can easily make them at home.
All you need are the simple household items: Scissors, Tin Foil, Lighter and of course, ping pong balls. Check out the video for the how-to.