We used to have a thing for Sania that flashed. It was like three balls connected and the bar connecting them flashed. It was awesome - she loved that thing. Never lost it. Can't even tell you how many tennis balls we've lost at the park at night.
It was kind of creepy one time, because there were two parts where it flashed, and it was red. All you saw were these two red dots flashing in the distance, coming at you. Nothing else. And my mom and I had just watched Mothman Prophecies.