Little triangular box kite in a round tube, tie the line on any old corner, fly it till you decide not to and then watch it tumble down magically, end over end, swooping and diving till you straight-line it back into the wild blue with a tug. Any kid of any age can fly it, so if you want to see the light in their eyes, give 'em a Triad. And if you REALLY want some dazzle, hook up a train, five or fifty on one line, and watch the crowds appear.