Ribbons instead of pins, and such.

[Nervous Jock]

The ribbon rosettes on the kilt apron are military and worn by the officers and NCO's of the regiment, only. They are also worn by the Pipe Major and Drum Major. The Argyll & Sutherland Highlanders wore an embroidered panel with the rosettes attached to it. The Black Watch wore bows, as does the present Royal Regiment of Scotland.

The bows you also mention are also referred to as Rosettes