Foam Glow Sticks

https://www.seerootoys.com/collections/glow-sticks , Our glow in the dark foam sticks are non-toxic, long-lasting, and safe for kids and adults alike. The soft foam design makes them safe to use even during active play. Enjoy a worry-free, fun, and memorable party experience with these glow sticks.

http://www.nicovideo.jp/watch/sm42866932