That's what I've done in the past. You can also use the PVC to hide any wires so if the skelly has light up eyes or anything like that, run the wires down the back, through the PVC and all the way to the ground. Paint it black and it's virtually invisible in the dark.I use a piece of 1/2" PVC slid over a piece of 3/8" rebar pounded in the ground. The PVC has a 45° Bend where the leg and hip join and another where the hip and spine meet. That way it is hidden behind his leg and spine where you cant even see it.