Here are photos taken of the Marquee installed with retaining plastic.
I bought the Marquee in July 2012. I bought a sheet of 1/8" acrylic plastic from Menards. I used an acrylic knife to score and snap the plastic sheet. Then I trimmed a piece to fit over the marquee graphic.
I bought the retaining plastic channel in April 2013. I used my miter saw to cut it to length.
Looking at the cabinet with the marquee installed.
Seeing the graphic all lit up from behind looks great.