Clean plastic container with lid
Glow-in-the-dark paint or glow-in-the-dark stickers
Paint small ovals on the inside of your jar using the glow-in-the-dark paint. Add a second coat if it needs more coverage.
Using your Sharpie, add the lightning bugs' antennae and wings on the OUTSIDE of the jar.
Let dry. Take your jar outside and fill it with fireflies. Before bed, let the real fireflies loose and bring your jar inside. The “fireflies” will live on throughout the night.