Quick mod for pinball machines. Because the wire forms are not always the same size adding some paint or dried adhesive will help them sit better. In the case of my Scooby there is a piece of fabric (back with gold sparkles) being held by the clips and that is more than enough to keep them solid in place.
I used thin paint sticks and cut them down with a razor to make the boards. I am sure someone could make them look much better with some paint or finishing.