I'd like to plug a Motorola accessory into a Sanyo phone.  Of course
the plug doesn't fit, so, I need a converter plug.  Does such a thing
exist?  Who sells these?

 The device is the headset at www.jawbone.com, and I was surprised to
find it doesn't use the standard 2.5mm (submini stereo) plug.  It
requires power, so, it needs to plug into the wide flat socket on the
bottom of the phone.  The company doesn't make one with the Sanyou
RL2500 plug on it, and I have this one that is for a Motorola v60.

 If possible I'd rather purchase a conversion plug than wait for them
to support the Sanyou RL2500.  Probably a full complete conversion
isn't available, but at least I'd like the best possible: at least
power, mic-in, headphone-out should be connected.