1 tsp of glue : 3 drops of food colouring : 1.5 tsp of water. The more food colouring the darker the jar will be. In order to make a turquoise shade you will need two drops of blue and 1 drop of green.
(link) WHICH GLASS PAINT DO I NEED ~ Info Guide ~ Comprehensive guide to the different types of glass paints and the look they will give you on glass. Lots of helpful tips for how to paint glass, too! ~ for more great PINs w/good links visit ~ have fun!