Promotional Games & Toys, Glow Slime - Light Activated, This glow in the dark slime is composed of a glowing material that activates once exposed to daylight. Imprint your company name and logo on the lid to promote birthday parties, craft stores, day cares and more! Recommended ages 3+. Due to the different densities composed in the glow slime, it may separate over time (knead the slime before using). ... #SLM235 $1.50/each.