I do a section of our walkthrough that is pvc pipe (for fog!) with a couple pieces of (donated) plastic lattice on top, then covered in black plastic. The lattice isn't quite wide enough, but I zip-tie it on and it doesn't sag much, and it provides good attachment points for both the plastic and the foam pipe insulation maze. Black zip ties, haunter's best friend. It does weigh quite a bit, so this needs sturdy support to the ground and good connections in the pvc - I have an elaborate system of the pvc frame up top supported by 4x4 posts from our permanent arbor, several shepherd's hooks, a clothes rack that also holds the fog machine, and a set of old wooden doors that form a "wall" at the end.
TLDR: plastic lattice
TLDR: plastic lattice
