Hey, I do not know if anyone has figured this out yet as I ran across it
truly by accident. This is SUPER-SIMPLE and can be made in any length!!
The method below
gives the illusion that it is ric-rac.
Cut a piece of felt however long that you wish. Shape up
all 4 sides with pinking shears. Cut from either side with the pinking
shears any width that you wish. The last photo shows a wider
ricrac - in my opinion it looks better skinny. Once you apply it on your
project the impression is ric-rac!
Say you saw it here!