^ You have to create a Tenso account, this is a middleman who will provide you a japanese address that you enter on mu-mo so that Tenso receives the goods. A few days later you get an email from them saying they have your goods and all you have left to do is go to the Tenso website, choose a shipping option and they'll deliver them to you.
YesAsia sells the neklace
here, but I would be careful with that because they happen to list items as available when in reality they are out of stock and you only know it a few weeks after placing and paying your order ugh.