I purchased a HUGE roll of this vintage cotton trim at an antique store. It's more than I can use in my lifetime so I'm offering some up for you!
This cotton trim has a red yarn running through it, which can be removed and re-woven with the ribbon or trim of your choice, or left plain.
It has a bit of a musty antique-store smell to it. I have not tested washing this trim but as it is cotton I would recommend doing so if you are going to use it on a garment that needs to be laundered.
5/8" wide, cut as one length if multiple yards are ordered.