A quick example of how a child found a way to make this apparatus his own is seen on the right. This child noticed the picture of the controlling buttons of the fan on the fan box. For him, the picture of the buttons became the on and off buttons for the cement mixing machine.
Here are some additional notes about the holes in the box tower.
First, always put a hole on top. Children explore every level. Consequently, they will always try to reach the highest level.
(I showed this picture of the boy reaching the top hole to a physical therapist and she said that it was a example of "good trunk extension." Good trunk extension sounds impressive and important for large motor development.)
Put holes on multiple levels with varying orientation and
vary the size of the holes to add large and small motor challenges to pouring into the holes.
Tape the edges of all the holes to prevent paper cuts.