Here is an example from last week's Fancy Friday at my place of work.
The knot here is an example of the Eldridge knot. It's a bit more complex than the knot you learned as a boy, but you'll get far more compliments on it because of that.
The rest of the outfit includes the waistcoat (vest), jacket, beret, hose, flashes, etc. The only thing I am still missing from my "fancy" kilt outfit is a proper pear of dress shoes... which I have either managed to misplace or destroy since I last looked for them.