Hi! maybe this will help!

https://www.michaels.com/specialty-paints/glass-paint/809188057

You can find specialty glass paints at the craft store. Like paints that look like stained glass etc

https://www.hometalk.com/39422115/painting-glasses-with-glass-paint

This project looks like it has a good tutorial.

There are also paint stains: pebeo vitrea 160 glass paint (available on amazon).

https://www.amazon.com/Vitrea-Assorted-Glossy-Colors-Bottles/dp/B005KOH3R4

This also is dishwasher safe and can be baked. And finally when you really get into painting glass, there are paints that are painted on glass that are then fired in a kiln. This paint will never come off!!! These paints are sold at stained glass stores and online. I hope I answered your question well. Good luck!

Painting Glasses With Glass Paint

At least three types of paint may be used on glass: acrylic enamel, acrylics marked as suitable for tile or glass, and specially formulated solvent-based paints. Your local store is likely to carry a range of options.

They sell made specifically for glass at craft stores.

Here is info I found for you

https://www.ehow.com/info_12019835_kind-paint-glass-lamp-base.html

Here you go:

https://www.wikihow.com/Paint-Glass

Michaels, and Hobby Lobby sell glass paint. Amazon has a large selection of glass paint.

Hello. This might be an exciting project to complete. This link could be helpful.

https://refreshrestyle.com/how-to-paint-a-lamp/

Lots of ideas:

https://www.hometalk.com/search/posts?filter=how%20to%20paint%20glass

Spray paint made for glass!