OK, I think I found something that might work, though it’s originally for M4; the sash from Bobbie25’s “The Royal Prince” outfit.
I tested it on several “princessy” outfits and fit it to V4, and it will do with some adjustments. Good colors can be obtained by changing the diffuse color, as most sashes of this sort tend to be bold colors anyway; maybe one day soon I can figure out how to put in details like stripes and borders. Still need to find medals - there are several on CG, but they’re American military medals and I need more European-type medals. Image attached (the dress is the fairly new V4 Fancy Dress from Rendo):
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