Hey jeepman, and all you others who didn't notice, it ain't just the wimmin using Pam!

But the last idea, here, from Grab, reminds me of burning golf balls as a kid, you can't do that anymore either. Make a little bonfire, place golf ball in center, BACK AWAY. Soon the outer shell will melt in one spot, enough to let (what used to be) a big giant rubber band wound very very very tightly inside the ball come shooting out. Usually it would wait till you'd come creeping back, wondering if it would ever blow. Well, what really happens is that the golf ball comes shooting out of the fire, in some random direction, and then spins around like a headless chicken for a while till all the pressure is off the rubber insides. No one even got their glasses broken, but that thing could really take off.