Thanks Sajen
Kino,
I used a bench grinder to get the rough shape, then a dremel with a sandpaper cylinder grinder to shape it a bit more. Dremel with small circular cutter bit and cylinder grindstone to route it out, back to sandpaper cylinder to get the shape a bit closer, then over to hand sanding on a block and files to gradually (very, very painfully slowly) reduce the shape again and again until it's as you see now.
Polish with fine silicon carbide as if its metal.
Arjan,
Do you think the rattan would have gone all the way down?
Thats good news
Best
Gene