Laquer sprays are extensively used by professional photographers to overcoat photographs, provide protection of the surface, hide defects (crimps/scratches) and change the surface of a photo (i.e. Glossy to Matte or Lustre).
They also make a "pebble" texture spray that is then topcaoted with the finish you want for a more "professional" appearance. (Usually "recommended" by photographers to frame WITHOUT GLASS) but we know better.........
We use the Lustre and Matte spray pretty extensively, especially when there are crimps or other defects on the surface of a photo and want it to look better. Matte spray hides a world of hurt.
Use any top coat with caution and be sure that the "photo" you are spraying had been produced with a compatable technique. Read the manufacturer's literature carefully and when in doubt, call them to discuss.
http://www.lacquer-mat.com/
If you had been at the PPFA/PMA show and taken my tour, you should have come away with (or in Kirstie's case shipped home) a bunch of output all called "photographs" to experiment on without trying out a new technique on a customer's print! The reason the word "photographs" is in quotations is because what we used to know and love isn't the same thing. Can you tell the difference between LED output? Dye Sublimation? Ink Jet? And, know the proper method of handling each type? What if you want to remove some excess ATG that got on the surface? Fingerprints? Can you use a petroleum based product over a waterbased ink? A water based product over a water based ink?
The "score and snap" mounting boards are fun for creating curved/irregular shapes in shadow boxes and other decorative framing products. NOT ARCHIVAL But, imagine mounting a photo and scoring in the shape of the mountains in the background and then snapping the board to have it follow your score line. Or in the shape of a building with risers behind it mounted on top of another photo as a backdrop (cool for vacation pics). I showed it on my tour because it is an unusual product and there isn't anything else like it marketed to framers. (Pres-On Products is the manufacturer).
http://www.pres-on.com/