Hey Dan -
I use to get these from the candle supply shops online like Aztec or Brambleberry. They’re great when making jar candles to keep the wick(s) centered while pouring / cooling wax. I never tried candle molds but they should work the same way.
Left over from one my former side ventures, I have maybe a dozen of the metal holders and 50+ of a similar plastic holder that I’d be happy to donate to the club’s candle kit. I also have hundreds of precut/assembled wicks of various thicknesses to donate as well, if wanted/needed.
Thanks
Jim