
First I cut a piece of card, with an opening, wide enough for the presser foot...
then I cut a second identically sized piece of card, holding the cards together I wound the cord onto the two, until it reached the desired size.

I gingerly slid the uncut piece of card out and laid the card with the window onto the base fabric. I sewed through the window - just a simple straight stitch, up and down a couple of times. I then tore the card to release it - ta-da! Super thick fringe....