I have questions about plug display cases if any of you can help me.
Assuming the cases are to be used to either put on a wall or carried to another location and put on a table or something, what holds the plugs in place? or are they just loosely placed in there and no way to mount to a wall vertically?
maybe some kind of nails into the back?
what is best for the backs? felt or foam?
I think having the lid on a hinge is wise and maybe also have some kind of hardware that can prop the lip open as well. Do they usually have real glass I assume, not plexiglas?
thanks for any hints or additional tips

