On Tue, 13 Jun 2006 21:03:04 -0400, "Bill Kearney"
wrote:

Yeah, but what about that clear plastic? It's very likely going to craze,
cloud up or otherwise show signs of considerable aging as well.

Probably true. My solution is to put lots of coats of varnish over
the graphics, sanding lightly between coats. Gradually the surface
begins to level out to the point where you can varnish and sand
without worrying about what is underneath.