Sensors andor taggants feature high optical gain materials which are disposed in a high scattering environment. The first boom is pivotally attached to the first pivot point so that the first boom can pivot about the first pivot point, and the second boom is pivotally attached to the second pivot point so that the second boom can pivot about the second pivot point. Then, the user selects a desired background scene and feature player in that story to determine pre-stored objects.