Buzzer made for speed date between artists and technologists at 'electric biro' hack. The logo was screenprinted, the black ink is conductive. I made a switch (pop out tab) out of the bottom part of the design, so that that when you press it down it closes the circuit and makes the buzzer go off. My first piece using conductive ink, loved it! More of that to come I hope. Proof that it actually works on utube below.