I can't help you on that, but I did read/hear somewhere of just filling an old sock with charcoal dust from the fire pit or wood stove. Shake the sock when you need to and the dust shakes out into the wind
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I was running out of wind checker dust in my puffer bottle, inserted some charcoal dust in it....it works but not as well as it's too coarse and jams up the end spout...so don't try that!
I'm going to try using an old sock and see how that works.