I had a blue tooth headset that came with my Sony Ericsson Z310i, but it resisted my attempts at disassembly, and didn't look like the microphone and speaker could be changed orientation, which I have decided is an important criteria. So I went to our local pawn broker and for the princely sum of AU$19 obtained a pre-loved Motorola H500 blue tooth head set. (They were very patient with this odd man who said he wanted a tiny head set or phone to put in a shoe).
The H500 head set had two advantages over the Ericsson one: (1) it looked like the speaker and microphone were on wires and could be moved; and (2) there were instructions
on the internet to help me disassemble it without breaking it.
Okay, so now I had a nice little head set, and all I needed was a shoe to put it in. Fortunately our church op shop was open, so for the bargain price of AU$3 I got a nice pair of very swanky shoes.