one of the official national treasures stored at the New York Public Library is this flag. Made for Jack London (yep, Call of the Wild, and San Francisco street gang tough Jack) by an unknown Korean tailor and displayed by him as he covered the Russo-Japanese war as correspondent in 1909.
improving the process. A good tip is warming the resin mix in warmish tap water bath to get its viscosity up before putting in mold. https://m.youtube.com/watch?v=IZk2knEsv9E
Miller was a dimestore fixture of the 40s and 50s, producing "chalkware" ie plaster decoratives and painted figures. some great toy soldiers of the Korean era come from Miller...but these are delightfully frightful hallowe'en goodies.