What are some techniques for painting on clear gl? What is the best paint?

The key secret is slowly baking the gl after painting This only served to discolor the paint and ruin the effect. I tried to do the inside of clear gl ornaments as well. The paint only pooled in the bottom. I shifted over to a proven gl decorating medium, engraving. With a diamond bits, small grind stones and a Dremel tool, I improved my techniques with much satisfaction.