Version 1 of this project – shown here – consists of an LM386-based audio amplifier driving a bone-conduction audio transducer. The transducer has been fitted with a cylindrical metal rest into which the gramophone's needle is placed. The result is that incoming audio vibrates the gramophone's needle just as the groove of a 78 record would: It's like having my whole collection of digital music as 78s.
Here's a short demo of it doing it's thing. With no blinkies, no lasers and no robotic arms, it's not much to look at, but it does work!
Version 2? Bluetooth enabled, because why not?