Separator for bead making mandrels

Hello all, and specially glass bead makers, Would you please tell me
how to make separator for mandrels at home? Where I live is not
easy to replace the jar I bought. Thanks a lot! Isabel Trujillo

I haven’t tried making this myself, so can’t verify it’s useability
or ease of making, however you probably recognize Brian Kerkvliet’s
name and know of his reputation!