i keep finding new uses for those light-up trolltech pens. we went on a tour of a cave and its natural beauty a few days ago. on the way out i and a few others ended up getting ahead of the tour group and the rather bright (to say the least) lamp the guide used.
the path was well outlined and easy to traverse so i decided to opt for a more "indiana jones" atmosphere: less light, more cave. to solve the problem of impenetrable darkness, i combined the pen with some shiny foil off an energy bar i had with me. the foil served as a reflector to focus the light forward, creating a nice ambient glow that allowed one to see the floor ahead and immediately surroundings quite adequately.
wonder what use the pen will see next.
and yes, we've already discovered they can be submerged in beer to produce nice visual effects that complement the drinking experience.