New Hand Blown Glass Glow in the Dark Red Jellyfish Paperweight 4.5'' Beautiful Swimmer Did you know that jellyfish are the oldest multi-organ animal on the planet? Our mesmerizing Baby Jellyfish Paperweight should last many human lifetimes Simultaneously handmade by two glassblowers skillfully working with molten recycled glass, this coral medusa shows off its species bioluminescence by glowing blue in the dark Item is made entirely of glass.