A lot of people who read this blog will be getting new domes in the near future. While you wait, its a good time to order your lazy susan bearings
to make your dome rotate.
They can be purchased from Lee Alley here.
They can also be found on Rockler's website.
You want the 17 & 3/8 inch version. Currently, Rockler is less expensive by a few dollars for those shipping in the United States.