There are two manufacturers of glass paints which I would recommend. The best in my opinion is Deka. It's oil based. The other is a French company, Pel or pic,,,, something.

They can be bought direct from UK agents, "Specialised crafts" or "Smitcraft", both craft suppliers. Also you can obtain the lead outliner in gold, silver, black or grey. This looks great on glass, also works great as a channel to stop colours running into eachother.

Working on glass is very effective, can play up on the eyes though, you tend to get doubles images on quality mirrors, so stick to the cheap ones.

It's a lovely hobby, my work in this area has become well known locally. Craft shops and tourist centres tend to go for it a lot.

Try working on drinking glasses, place the image you wish to copy on the inside of glass and trace with lead outliner, it's not actual lead, it's a plastic.

Enjoy

Liz