Here I wanted to show the cap ends. It is a standard 4" PVC cap, though I drilled both the cap and the elbow on the side and ran a cord through with a knot on the insides of course. this allows the caps to NOT BE LOST! I'm debating if I should paint them eather black or orange so they are noticed. Also you can see the tree is standing pretty well,

AND LOOK AT THAT AWESOME ROLL OF BIG BUBBLE WRAP BEHIND IT!