Consider having your nicest fly's put into a controlled atmosphere or shadowbox. Use a glass that will keep them from fading and if done properly the flies can be displayed in a fashion that is absolutely stunning. Granted these larger boxes take up a considerable amount of wall space but they are truly a site to behold.

If you haven't ever seen the Fly Plates that go up for auction at the FFF Conclaves your missing out. These plates are truly works of art and beautiful to behold.

Trying desperately to find a link that has pictures of past plates.
~~~waders~~~