Time to soak the ball. I used 70% rubbing alcohol, but 90% makes a bigger flame, and lighter fluid an even bigger one. But beware, as the bigger flame there is, the more easily you can get burned. Just pour the flammable liquid into a small bowl and roll the ball around in it, squeeze it, etc. to soak up the liquid. Be careful though, if there is too much liquid, some can get on your hands and they can light on fire! Squeeze out a few drops if you want, then set the ball aside out of the liquid.
IMPORTANT: Make sure you wash your hands after this step so you don't light them on fire.