Sailors Swab or Whisk
In Des Pawson’s Knot Craft, Des mentions that Sailors would swab the decks using giant swabs made from old rope. Also scaled down versions were made to wash dishes and also used as hand sweepers to clear crumbs from tables.
Ashley Book of Knots also has a selection of different variations on page 566.
Matthew Walker Knot
In my particular case I had some this is very old cotton 3/4 inch diameter rope that I salvaged from somewhere. I would say that it would be better to tie it from manilla, as it is a little firmer and courser, which makes it more ideal for actually doing the job.
I cut myself approximately a 36″ length of rope. I then centred the rope and formed a loop that felt comfortable, which I then held together using a constrictor knot. I then unlayed the strands up to the constrictor knot, so that I ended up with 6 separate strands. I then tied a constrictor knot onto each of the strand ends.
Finally I removed all the constrictor knots, cut the strands to length and then started to comb out the tassels. As you can see from the picture, this still needs a lot more combing!