I imagine a (clear & colored) layered stand that would hold the coins upright/vertical with a window that would allow a view of the coin on either side (similar to the that kids game: Connect 4.. Where you drop the chips into a vertical holder trying to make rows).
That way you could use a mirror backed acrylic case, seal it all up nice (I love sabers in the box) and have a wonderful view of both sides of the coins.. Alternately without a case or on a shelf you can simply rotate the stand and see the backside of the coins when showing off your dedication and pride for being a member of the fx & custom saber community.
I know it may be custom work for now but once the design is settled I'd like to see it offered as one of your common designs (to keep the overall project cost within reach for the average fx sabers member who would wish for something simple to display the coins & a single saber). Nothing fancy at all.. Just what gets the job done.
Anyway thanks again for doing this to bolster community pride and awareness, I know whatever stand design is worked out and becomes "standard" will be something (like most of your work).. Out of this world!!