Of all things, my favorite has to be when I decided to use some 'Transformers: Beast Wars' figures and those plastic wire things that hold some of the larger figures in their cases. So I thread those through the holes in their fists and tie them to shopping bags. Next, I point the pivotal fan up towards the ceiling. Finally, I place the figure atop the fan and VOILA! Para-dropping robots!
Any other tales of good clean fun with toys?