Holo Projector Holders part one

I decided to use the left over piece from my dome to hold my holo projectors in place. I only used the top part of the inner dome and a section around the side. I had the piece below left over. Once it is cut to the right size it fits flush on the inside of the dome because of the curve that it has.

Here are the two pieces that I have cut. The one on the left is 1mm abs that is flat and the one on the right is from the dome. It is approximately 2mm thick styrene.