It doesn't have to
be a 'Pringle' box use any roll and make your own end caps, you can even
use a plastic bottle. Use a large heavy nut and ensure the band is tight
enough so that the nut doesn't hit the insides of the tube. If the nut
keeps flipping over it is too light, or the band is too tight. You
can use the green 'Jello' buttons to pause and play the animation!