A pneumatic sculpture 10 includes a display tube 30 having a first end 40
and a second end 50. The pneumatic sculpture 10 also includes one or more
projectiles 20 contained within the display tube 30. The projectile 20 is
capable of being propelled through the display tube 30 from a location
proximate to the first end 40 to a location proximate to the second end
50, and thereafter from a location proximate to the second end 50 to a
location proximate to the first end 40, thereby traveling in one
direction or in both directions. Lastly, the pneumatic sculpture 10
includes a pneumatic means 60 coupled to the first and second ends 40, 50
of the display tube 30 for controlling the speed and direction of the
projectile 20 through the display tube 30.