What about a Claymore instead of the pipes? Many advertisements I see for Marine recruiting show a man in dress blue tunic with the white hat and a saber (mindful that I don't know all the Marine-specific terms for these things--I'm not a Marine so I'm not bound by their rules to know).

Ooooh, that raises an idea for a different image (future project, perhaps?): Dog in blue tunic and Leatherneck kilt! No, wait, that would have him out of uniform...