I quite like
LJ's idea of a pin back rigid ribbon bar for wear in shirt sleeve order, etc - if you've got them, flaunt them, I say!
Definitely the need for a wound stripe though, or something like that
Not been issued in the UK since WW2, as far as I know, but I think another good idea, although there will always be argument over what constitutes a wound! Incidentally, when looking into this in some old references, I discovered these are correctly called "wound strips" (not stripes), but like everyone else I've always called them stripes.