That is one example of impractical art a person can do.  You can also set up the area to turn a water faucet on or off a complicated way, open or close a door a complicated way, turn a TV on or off a complicated way, or even turn a page of a book that requires 42 steps to accomplish, if you are so inclined to do it in that many steps.  There are a large number of complicated ways to do simple tasks that can be done in the Rube Goldberg area. 

There is an impression wall that has over a billion thin steel rods that you can move with a magnetic wand.  By using the non-magnetized end you can push the rods or just use your hands.  They can be pushed in pretty easily.   You would use the magnetized end to pull out the rods that can extend to a meter in front of the wall.  The rods are thin enough that when you stand back a ways, you can see definite shapes.  The wall measures 100 meters in length which means there is room enough for many people to do a work of art even if it is only an impression of their bodies.     

The art of motion and moving to do art is demonstrated in the Kinetic Art Gallery.  It is another fun place to be when you have plenty of time to waste and plenty of energy you want to expend.