DIY Our new glow area/materials. Glow in the dark bubbles, glow sand, glow silly putty, moon rocks, glow water beads, glow paint, glow powder, glow water, pipe cleaners, rocks, blocks, shells, and sticks all painted in glow paint. :-)
Veg oil, water, alka seltzer, food coloring, and a bottle. Fill a bottle 2/3 with veg oil and 1/3 with water (keeping in mind to leave 1" at the top). Add 10 drops food coloring. Add 1 alka seltzer (broken in a few pieces, adding one piece at a time - when first piece stops bubbling, add next) and watch the colors.