Perhaps you punks could add some frilly lace, after the fashion of the 18th century, and phrygian caps and spurs. Then the juxtaposition of disparate elements will be complete!

But seriously, I never would have thought that anyone would mix plaid pants with, well, anything, but especially not with leather jackets and mohawks. I guess you can tell that we don't have punks (well, "punks") around these parts.