Need a charging cable, any advice?

So I just arrived in Japan for a month for my honeymoon and left my charging cable plugged in to my PC. I'm from Australia and not sure if I could get mine sent in a good enough time frame due to lots of moving around.

Has anyone got any ideas on where I can get a replacement or alternate ways of charging?

I can see why "proprietary cable" is such a pain now.

Thanks in advance.