Method #1:
Grate and pound the color source. It sometimes helps
to add a little water to the mix while pounding. Move the solution to a
cooking pot and bring the solution to a boil. Let the solution sit overnight.
The next day, strain the mixture through a cloth and squeeze out as much
dye as possible. Fix (stabilize) the color by adding a little vinegar to
the dye.
Method #2:
Soak the color source in a mixture of 3 parts water
and 1 part vinegar. The longer you let the source soak, the more color
you will get from it, and the richer you dye will be.
Mix the dye and alcohol together in a sealable container.
Add the water to the corn starch and mix until the
solution is thick and clear.
Add the soap flakes and stir until dissolved (optional)
Add the color from the dyes, rocks, etc.
First combine the varnish and parafin.
Next combine the soot with the varnish mixture.
Store in an airtight container.