We require 100% silk for this to work. Make a point to check the marks to ensure you’re not purchasing polyester, which can seem to be comparative. I snatch old ties at the thrift store where they’re normally quite shoddy. Put all those little guys in a pot and cover them with water. Add 1/4 C vinegar and bring it to a boil. After about 20 minutes you can remove the eggs and set them in a colander or on a towel to dry and cool. Once they’re cool enough to handle you can remove the fabric.