The whole thing started with some wine barrel hoops I found free on craigslist. Using cutoffs from a shade structure and some MP fittings, I had a frame. Some chicken wire and poor mans fiberglass finished the model and a bit of paint. It looks rough, but it's really made for blending in in the dark.
Glue is titebond 3, so it's waterproof. My final layer was barely diluted to get a good seal.