I glued 60, 4 inch mirrors to the back of each lattice square. Some were cut to fit. I left a few empty along the frame to add interest.
Gluing the individual mirrors adds a bit of extra sparkle because each mirror is at a different position instead of using one big mirror. Both would have worked though.
Anyhow, just a thought as of what to do with a piece of lattice you no longer want to use as a trellis or whatever(-: