Lost Tango Charging Adapter

I cant believe I managed to do this but ive lost the little adapter that goes on the end of the normal usb cable. The one that has the magnets on. Where can i get a replacement for this?

Thanks so much Alicia, I'll definitely try that later on today. :)

We-Vibe sell spares but I think I'd rather treat myself to a new bullet rather than spend on a replacement charger.

I'll check my Desire bullet when I get home - thanks for the heads-up, Alicia.