Use a blacklight, highlighters, water and stuff for in the jars. Cabbage and twigs will do. Your average highlighter glows under blacklight, so to achieve the glowing jar cut open a few highlighters and drained them into the water filled jars.
You will need mason jar, vegetable oil, optional dried flower & black & white picture. Place picture & flower in jar. Pour in enough oil to cover the picture & tighten the jar lid. The oil will suspend the picture & give it an aged, vintage effect