If you have not heard of Unicorn Spit Stain and Glaze in one you are missing out. This product is so great, it is a non-toxic gel stain that can be used on many surfaces. I think the main use was for blending colours on wood. Which becomes translucent and you can see the wood grain through the colour. But my favourite is Unicorn Spit on glass. And the best thing about Unicorn Spit is you need no skill to use it on glass and every piece is unique. It worked so well I thought I would try Unicorn Spit on the plastic baubles for our Christmas tree.