Mark writes –

You remember Field of Dreams, the baseball fantasy movie where Ray Kinsella heard a voice that whispered, “If you build it, they will come,” don’t you? Well, ARRL Education and Technology Program Coordinator Mark Spencer, WA8SME, has come up with a successor to his No-Solder Code Practice Oscillator project that–if you build it–is sure to spark delight and interest in children.

HOW TO – Man an almost-no-solder electronic organ – Link.