Believe me Jerry they're easy to make it's like all the other cut at 90deg you just turn each piece making sure you have something to glue to. I just offer it up first to see where on the circle I can put glue onto and glue the back of the piece I'm putting down and then the next until your at the top and I turn it upside down and place a heavy wooden block on top until dry. THE END. Roly.
PS: Hold down each piece as you go and wipe excess glue off.