Mix Elmer’s glue with food coloring and paint it on to any glass to make it look like sea glass when dry. In a bowl, you will want to add one teaspoon of glue, three drops of food coloring and 1 1/2 teaspoons of water .. These look really nice with candles, or electric candles, glow sticks ect inside them.
Optional idea if you wanted you put tape on the Mason Jar in a Goddess spiral shape or pentacle, stars, moon, Sun etc other symbols and paint as normally and take the tape off then paint the symbol in a different color and then when your done put a LED Battery Candle inside imagine how gorgeous that would look or add a bit of Glitter to this for a Shimmer look.
Best Results use a foam brush
Seal the jar with Epoxy Glue or a Clear Varnish to last many many years of use if you are planning to use this for Drinking Coat it with a food Grade Varnish found in Craft stores
Paint outside the Jars not inside and Only White Elmers Glue Works I have not Tested this on PVA glue or other Glues