Cool, the more experimentation the better…
I got mine on eBay… Cobalt hexachloride is what you want as it the most water soluble form… mine came all the way to oz from Bulgaria🤷♂️…. I think I got 100g for $50 or something… enough to last me 10 lifetimes. It’s a purple/pink crystal.
Something for peeps to be aware of is that CoCl2 is nasty stuff. It’s highly toxic, especially if inhaled and probably carcinogenic so DO NOT smoke anything treated with it and exercise caution and take chemical handling precautions(nitrile gloves and a quality dust mask) when handling it.