Who doesn't like light play? Years ago at a Brooklyn light festival, Bring to Light: Nuit Blanche New York I was captivated by artists' explorations into light and color. The festival only lasted two years - but it was amazing. I was completely fascinated by one artist’s creations using old box televisions and PCV tubing.
Light play is an engaging activity for children of all ages--there are so many possible connections and adaptations. It's a wonderful sensory play as children explore light properties, color, & shadow. As children grow, it continues to be a great fine motor activity and can connect to science, literacy, aesthetics, and math easily. Manipulatives can encourage children's early understandings of foundational mathematical concepts such as counting, one to one correspondence, symmetry, and more.
Growing up I could spent hours in front of a sink playing. Hours. I loved water--there was not a body of water I couldn't resist jumping into...I think that fun and joy in water has carried on with Little Miss F. Bath time is a highlight for her & water play is something she almost craves.