Can you handpaint the glass shades around pendant lights?

I’m looking to add a little color without replacing the shades, which I have researched and realized it will cost about $13 a shade for the colors I want. I have so many shades, it would save me a lot of money if I could paint them myself. The existing shades are white semi-translucent glass. I’d like to add an aqua color to them, either solid or in a pattern, which may look better to hide the brush strokes)