How to make perfectly round beads. In Russian, but clearly illustrated by photos - very interesting idea, but would it work with polymer? The water bowl in the photos suggests this is porcelain which is much softer.
DIY Wire Wrapped Marble Pendant Tutorial from Artyzen Studio. This is an extremely detailed tutorial that would be good for wire wrapping any round bead, gem, stone etc… For wire wrapping odd shapes like sea glass and hundreds of wire DIYs go here.