I paint on glass using various materials from spray paint to enamel to masking tape to papers. I have done so for the past 10 years or so. I never limit the materials used in any "painting" and through enough trial and error I now have a system and it works! I used to design t-shirts under the name MonsterArm, most of which are Horror/Sci-Fi related. Lately I have been making Kaiju Melt Monster vinyl art toys. These have been fun and I hope to continue to make them. As a side note, people should not ask an artist how they did something or what they did to make it happen. Have some respect.