For 15 bucks you can buy an electronic scale on EBay with an accuracy of a
tenth of a gram that will allow you to mix tiny batches of epoxy.

50mm syringes from the farm supply store, or Woodworkers Supply works
great for small quantities if you can mix by volume. Woodworkers also
has small cups, sticks, and acid brushes for a reasonable price. No
need to resort to the freezer trick..............
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Leon McAtee