STEP 1: Have an adult use the box cutter to cut the pool noodle down the center, in half, lengthwise. STEP 2: Using the double-sided tape, attach one of the pool noodle halves to the wall to design a ...

There are few things that can keep a certain kind of mechanically-inclined mind entranced as well as a marble run, and few structures that look as interestingly organic as procedurally-generated ...