I've heard that hydrogen peroxide baking soda and dry ice tightly sealed in a bottle makes a nice glow.
So does a SOBE bottle full of gas, with the tiniest needle hole punched in the bottle lid, gently placed upright in the center of a roaring fire...the glow is only for a second or two, anything within 50 ft during the period that it is glowing is prone to a light surface burn. On a good night (or bad depending on perspective), you'll have a ring of Ranger's trucks around your camp in short order, most with the glow of their headlights and flashing reds and blues lighting up your camp for you. Makes for a hell of a spectacle...folks camped around you will completely forget what they were supposed to be doing if you do it right! (or so I've been told)
This one was done right, one in ten or so go horribly wrong, which can get ugly!