Update: use 3/4" pipe, it's a little heavier but it's a lot easier to control. The half inch works okay if you do not have to go over at an angle, in other words, you can stand directly under where you're using it. But the 3/4" is better. That's what I'm using in the first video in fact. The second video (below) shows the 1/2" pipe version working.
Step 1: Supplies
male and female threaded connectors
plus one threaded angle connector and corresponding parts for each attachment you have in mind to add
red hot blue glue (pvc glue)
cheap broom or window squeegee
possibly also some epoxy putty or friendly plastic