cut open glow sticks and pour them out. They last longer if you have a lid on the jar.
Sooooooo many cute mason jar ideas! The Original Handmade Mason Jar Solar Lights Design, Flower Frog Lids, Ball Jar Hanging Lanterns & Lights, Mason Jar Chandeliers, Mason Jar Flower Vases, Canning Jars, Fruit Jars, with Recycled Garden Treasures.
Retro Surf Birthday Party - Kara's Party Ideas - The Place for All Things Party
This site is full of great party ideas - LOVE this Retro Surf's Up Birthday Party Idea!
solar lights ~ what a good idea for camping.