You can watch some physics demos that aired on Jimmy Kimmel Live last night.
Guest Kerry Washington of Scandal assisted Jimmy and "Science Bob" Pflugfelder.
Skip to 26:00 on the show, and you will see the first science demo. They show the "Greek Waiter's tray" demo, using centripetal force so that the fluid does not spill from the cup, even while spinning upside down. This is similar to my SpillNot video.
Later in the show, they scale up the trick using a hammock and a picnic (you'll just have to watch it).
And finally, for the grand finale...they use a blue laser to carve and light a pumpkin!
If you want some Halloween-themed physics and chemistry learning fun, then I think you'll enjoy watching the video.