Glow In The Dark Pebbles
GLOW IN THE DARK PEBBLES
Accordingly, they could also be a good way to frighten away that unwanted pesky neighbor who keeps showing up at your door uninvited.
Implications - In the daytime the pebbles just look like ordinary stones. The glow-in-the-dark pebbles are solar powered, so if it is a rainy day they may not glow as brightly at night. If the sun fully charges the pebbles they can glow for up to six hours at nighttime.