Try cutting some of the PVC into maybe 1" lengths and then cutting
the
length down the middle. Wrap the plastic around the frame and then
force
the "clip" over both the plastic and the frame -

That idea worked pretty good but I'm going to buy some chicken wire
tomorrow and put over it. The wind blew for 30 hours and just quit at
21:00 CST and tore up the plastic I had on the east end.