Army Helmet Lights How Can I Make A Home Made Flash Grenade Or Something That Will Enable Me To Move Through Darkeness And Light?

How can i make a home made flash grenade or something that will enable me to move through darkeness and light? - army helmet lights

Me and my friends have airsoft wars, and sometimes me and my team of friends and his younger brother always surprised us because we used his brothers army helmet and theres the neon lights as the light in the dark helmet and a helmet is real and it went to Iraq and I think they use light for these things friendly fire happens, but I still wana a flash grenade or something that I do not want to make d 'use of fireworks or anything.