On: Fisher Price Chatter Telephone with Bluetooth

[flatiron]

I bet if you cracked it you wouldn’t need one. Rotary connected to some IO pins. Speaker and microphone off the DAC and probably some more IO for lights, ringer, and stuff. I bet you label the wires when disassembling you could put it in anything fairly easily.

[bluGill → flatiron]

A number of people have done this in various ways over the years. Search for old blogs the hacker news archives and should find them.