Don't you love when innocent playground activities meld with extreme sports?
This is not the pogo stick of our childhoods. No, no, this one's inner compression spring generates more than 1,500 pounds of thrust capable of hurtling you seven feet in the air, which incidentally is the world record for pogoing set by--you guessed it--The Pneumatic Drive Highest-Jumping Pogo Stick. Air can be added by bike pump or air compressor to the pneumatic cylinder to make pogoing as dangerous, and expensive, as possible. This toy will set you back $350, and may require that you wear a helmet.
But really, who cares that one false move could mean eating through a straw for the rest of your life? It's FUN.