Wooden dowels work. I think an end of a cheap wooden pole (painters extention or cheap bloom handle) would work also . They are threaded.
I saw that also. They are cut on a slant square on the bottom and turn round at the top with threads. Some prices on them vary greatly.I was thinking the same. Looking on Etsy and eBay you can find people selling multiples of them for a decent price so you could get the original weather look.
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