Where to Find it
Most Craft Stores carry glass paints in the craft sections (Michaels, Wal-Mart, Etc.)
Name Brands
Plaid, Gallery Glass
Positives about the paint
Dries into a plastic
Easy to clean-up if you make a mistake, simply wait until it dries and peal it off.
You can layer it so that it gets darker in color
Negatives
You can use a brush, but it does not spread evenly that way
If you get it in cloth or your clothing, it is hard to get it off
See the Tutorial on
Painting a Time Traveller with Glass Paint