I did not originally intend to post this. I chucked up a piece of scrap pine to do a proof-of-concept on a goblet with rings. Bad idea! The pine was so fragile that even though I was able to do the rings they disintegrated at the slightest touch when trying to sand the inside the way Curt described (and I had turned four just in case!). I started to just trash everything, but decided it was a pretty little form and worth finishing.
And you know me, I'll post a 'first' no matter what it looks like!