Stick the brooms upright at a slight angle into each other. Cut the rope into two equal pieces and fix the broom heads at the bottom and top with a knot (I had made a "pile stitch"). Wrap the ends of the rope with colored insulating tape to prevent fraying.
3 broom heads, ca. 1 m rope (8 mm thickness), colored insulating tape
ca. 11 €
ca. 20 minutes