When I walk around with the kids I wear an Inova 24/7 on the included neck lanyard on the intermittent strobe function (one white strobe every 2-3 seconds) with a gladius in my pocket and an HDS EDC U60 on my belt.
My kids each get an Energizer "pull light" that hangs on a lanyard around their neck. It's kind of a button battery powered light that is a 5mm LED so it illuminates the ground in front of them, but is visible from quite a distance. You pull the body of the light against the lanyard and it turns on and off with alternate pulls, I guess you could call it an inverted clicky switch. They're light, inexpensive, and great for me to keep track of the princess and witch.