1.

Use a sponge brush to cover the inside of a clear jar with decoupage glue. Use enough glue on the brush to create a thin layer while spreading it across the inside of the jar.

2.

Pour glitter into the jar and then put the lid back on tight. Shake the jar so the glitter coats the inside. Remove the lid and wait at least an hour for the jar to dry.

3.

Shake out leftover glitter. Place an LED light inside the jar, and enjoy the sparkly light.