I made this Line Faking Tool by sticking a couple of pins in this piece of wood.

I then tie a Midshipman’s Knot on one end and slip it down one of the Pins and then carefully coil the line around the 2 pins.

After I get the line coiled, I dab some Transparent Wood Glue on it and let it get hard. After which I lift it off with a Flat Xacto Blade.