The leeboard thwart took some doing, but its done now, too.  Half of the work was research, and finding the hardware!  Some of I couldn't find so I had to make, that would be the angle brackets at the ends.  On a sailing canoe these used to be available in brass, and I suppose that I could have made some in brass given more time.  I made these  from many layers of fiberglass, then painted them black.

This is how the leeboard thwart sits on the boat and how the leeboard itself is fastened.