A few years ago there was a chandler near all the mud moorings in Fareham that used to carry beautifully laminated tillers. I had to stop going in there as I wanted one that had the most delightful curve in it. so I can't tell you if a. the chandler is still there or b. they still carry ready made tillers. But it is not far from Port Solent if you want to check it out.
-------------------- If it moves and it shouldn't use gaffer tape. If it doesn't move and it should use WD40.