Ashley's book of knots is one of the best souces of sailors art knots and decrative knots. On wood, one can tie these knots tight enough that they don't slip. I have done some on SS wheels and used a specialized silicone adhesive. Be sure that you use a rope which will not weather or be degraded by UV. When wrapping, as long as you secure the ends, the middle will not slip--assuming it is tight.
The problem I see is keeping the wraping clean. It can be done, but gets away from the simple functionality of SS.
The problem I see is keeping the wraping clean. It can be done, but gets away from the simple functionality of SS.