Take schedule 40 pvc pipe that is bigger than the diameter of your trollin motor shaft and drill a hole in the side of the pipe that is the same size or a fuzz larger than your TM shaft. Cut the pipe in half across the hole you just drilled. It should wrap half way round your TM shaft. Cut it to the length that will let your TM stow completely. Then use a Velcro strap to hold TM and brace down.