Funnily enough, I have just ordered 2 ring cores from the bangle guy at the end of last week. These are to make myself a replacement wedding ring as t'other one got too small & had to be cut off.
I tried to make some rings last year,out of wood, Perspex, aluminium or a mixture of all 3. What I noticed was that the edges of the rings were too thin and brittle or too thick & uncomfortable to wear.
A one piece ring will not last long, I don't think, no matter what orientation you spin it (spindle or bowl blank grain wise).
Sandwiched pieces, again, need to be exceedingly thin to be comfortable to wear and again very thin = brittle.
Ring cores are hopefully the answer to a long lasting ring & you can get them in titanium or stainless steel.
Just waiting for them to arrive.
Of course, the above is only my opinion and observations from my own endeavours - I am sure some one will have tried another way with success.
