RcBBQ - (hope that is not a prophecy of what happens to your plane! Is that anything like "my plane....it's toast now"?)

I think the spinner is pretty much cosemetic. The plastic ones look terrible after just a while with the electric starter cone rubber and are sometimes short lived. Aluminum is kool but often I just use a Highley hub or Dubro cone shaped hub nut. Look neat, safe and last.... even through accidents!