Colouring Shrink Plastic Jewelry: Best Colour Blend?

by beverley.
(Carnforth Lancashire)

I am new to making jewellery with shrink plastic.

Does anyone know what sort of medium I can use to colour shrink plastic?

I have tried water based pencils , ordinary pencils, pro markers, metallic pens and glitter pens, but they did not blend properly.

Any one got any ideas? Much appreciated.

Bev
Re-Kindled Krafts