Rinse and dry each of your gallon jars thoroughly. This eliminates dirt and grime that may prevent paint and poster tack from sticking. Iced tea jars with hinged lids work best.
Pour enough acrylic paint into each jar to just cover the bottom. Cover the lids in painter's tape and close the jars. Pick up each jar and twist and turn it to coat the inside of the jar evenly in color. Open your jars and let them dry overnight.
Remove the painter's tape from your jars, and spray paint the outside of each one with frosted glass spray paint. This gives them a chic and professional look and helps diffuse the light later on.
Push on the bottom of the light assembly on your garden stake lights. The assemblies should simply pop off. As of 2010, these stakes cost about $3 each.
Spread a little sticky blue poster tack on the underside of each jar lid. Press a light assembly into the sticky tack. Place a large rock on the inside bottom of each jar. Close the jar lid, and set the jars along your driveway. The rocks hold them in place, and the lights turn on when the sun goes down.