Way back when, using garters to hold up ones lower leg coverings was something that was not just a Scottish thing, but an actual need throughout most of the Western World. Today garters are pretty much relegated to Scottish Dress, Marine dress uniforms and the boudoir. My focus has pretty much always been the 18th Century, and I have always been on a quest for actually authenticity. There were specific woven products made to serve as garters. Not as fancy perhaps as the fingerwoven garters used by Native Americans and then Canadians, really just plain or patterned twill tape that you see in store inventories listed as "Gartering"

But look here, here are some quite fancy garters, not fingerwoven, nor just tape. This example comes from the MET Museum collection and is from late 18th Century France.

http://www.metmuseum.org/art/collect...=20&pos=10