I mixed blue & green dye along with a little water, drops of blue and green dye, also added a little vinegar for the color to set. I then soaked a strip of natural muslin (torn in a 2 yard strip) in the solution for a few minutes. I usually hang my strips outside to dry. Then hand stamped with a rubber stamp "Pour Vous" which is French translated to english "For You"
This trim is available for purchase
in my ETSY store.