Ah, the Electric Bow Tie 3000: BMOW’s least-loved product. The bow tie was retired several years ago, but it’s still possible to make your own annoying neckwear device! I’ve belatedly uploaded the schematic, PCB files, parts list, and instructions here. For those who’ll be attending Mactoberfest Meetup this weekend, I’ll be giving away some Electric Bow Tie kits. These include the PCB, LEDs, and CdS photocell. The other parts (buzzer, 555 timer, etc) are available from DigiKey, Mouser, and other electronics suppliers.