PhonEY
Well I don't know about you but when i got my $1000/€900 I-mate JasJar last week I certainly wanted to do anything possible to stop it being stolen, So I came up with the idea of having a phone shell that has a bluetooth headset mounted inside so it doesn't appear that i have a JasJar, but instead a cheap old phone, in my case a Nokia 3330
What You'll need :
1x Bluetooth Headset ( I used an Opticom BT20HS that i bought from argos for €40/$48 )
1x Nokia 3310/3330/3390 (or whatever other phone you want)
1x T6 Torx bit to disassemble the phone
1x Tube of superglue
1x soldering iron
some wire (the thinner the better )
and of course some skills
Steps :
Disassemble the phone and headset ( remember to remove unneccesary bits such as vibrator, ringer power connector pcb board)

remove some excess platic so that the headset board and battery fit in

Now remove the phones speaker and install the one from your headset, youll need to glue it in

Now make some lengths of wire like 2 inches long and strip either end, then solder them to the positions where the microphone connects
Connect the microphone to the other end of the cable and then glue in the microphone to where the phones original one was

Now, you have to chip the power/hangup/answer switch off the pcb and solder in two wires in the switches place, then install a small pcb mounted switch under the menu button of the phone (yet more glue required) this is so you can actually answer the call as if this was a normal phone
Now try and squeez this all into the phones case

Now your done, you have to remove the phones back cover to charge the headset but the end result is quite good

Thanks for reading
-Stephen C
imes.stephen(@)gmail.com