Here's a suggestion that's tough for me to explain, but really easy to do. Take a manilla folder (with the 3 folds in the middle) and cut a half circle shape on one side of it right above the outside fold and a matching half circle on the other side above the bottom fold. Should give you a half circle on both halves, and about an inch gap in the middle that the fan can slide into. I cover that with brown felt with some elmers glue and let it dry. Then I take some bondo and apply to the fan on both sides to firm things up and hold everything in place. Gives you something to screw into too and hides the base of the tail.
Just an idea, and I can send you some pics if you PM me a phone to send them to.
