@donnabking,
these rings are widely available in japan. it's called Rindai (white ring) or kiku-ka rindai. i searched to see if i can find anything at all.
you can see it on Longwood gardens blog:
https://triadfellowship.wordpr...
my guess is that they get them from japan.
here's a japanese site selling them:
http://www.garden-bank.com/SHO...
you probably can use african violet leaf support (with extra wiring on the inside to connect it to the stake):
https://www.violetbarn.com/sho...
or make a custom wire spiral and connect it to a flower ring stake (like the ones used for peony, for example):
http://www.esbenshades.com/per...
