Most people use the ceramic bases found at your local hardware store in the melamine enclosures. If your enclosure is tall enough and you are looking to hang a dome? then you can always use the hooks that have a screw end on it and hang the dome by the metal hanging piece?
If you are looking to put the dome on the top of the enclosure, you can cut a hole in it the size of the dome and mount the dome on mesh in the hole.
It all depends on the method used. Hope this helps some....
Good luck