Those look great!
I picked up 2 rubber toppers from the greenhouse megastore last year out of curiosity. I have been very happy with everything I have purchased before from them, but these were a fail. They dried up and split before the end of the season.
No on to a new project, making new bean teepees!
I should start a thread: How many projects have I started from reading Tville.
Worth, I think you have been the initiator of a few.