US military insignia

[unixken]

Technically, the only military awards and ribbons permitted to be mixed with civilian clothing are mini-medals. Other than that, most vendors of authentic mil-spec medals (full size and mini) also sell mini-ribbons, mini pins, etc. Any of those, along with retirement pins and unit fraternity pins, should be good to go, with kilted apparel.

The wearing of uniform collar devices, cap devices, and such, if part of official uniform wear (and not just some fraternity item such as a tie-tack with your service branch's emblem on it), is also generally disallowed.

Would you end up in prison for wearing a cap device as a brooch? Or a collar device as a tie pin? Probably not. But if you're at a patriotic or veterans event, where lots of vets are apt to be found, it is probably in bad taste to wear any official uniform items (other than the aforementioned mini-medals) with civilian apparel. There are plenty of "fraternity" items out there.

That said, you may want to look to see what's available through http://www.alexismalcolmkilts.com/1451/1469.html. Those items are normally used only by the pipe bands for each branch, but although they are covered by the band's own guidelines, they fall outside of the official uniform regs (at least that's the case for the Coast Guard - I can't speak with certainty of the other branches.)