Silly Putty. I must have lots...

Everyone knows you can order Silly Putty (or Dow Corning Dilatant Compound 3179 if you wish to use the generic term... dilatant refers to something that changes viscosity when stretched or put under pressure) directly from Dow Corning but the minimum order is a hundred pounds. And it costs around eight hundred bucks. But now crayola.com has just five pounds for about eighty bucks, as Binney & Smith hold the trademark. Available in colors too!

What would I do with that much Silly Pu... I mean Dilatant Compound? Probably shape it into a ball and throw it off a parking garage like these guys did.

Also, magnetic Thinking Putty. And clear putty.