You can ship your order for only 1000yen. (But if your order's shipping fee goes over 5000yen, you will have to cover the difference.)

http://global.rakuten.com/en/event/tenso/

Some details:

Duration of the campaign

Valid from Dec. 20th, 2011 10:00am through Dec. 28th, 2011 9:59am (JST)

*Processing of your package's forwarding can be done on your Tenso.com My Page till Jan. 18th 23:59 (JST).
*Campaign coupon will be invalid after Jan 18th 23:59 (JST)

Your benefit

If you make purchases at Rakuten and ship via Tenso.com using Campaign Coupon, you will be charged only 1,000yen for your international shipping fee.

Please note that if your international shipping fee exceeds 5,000, you will need to pay for the portion of the fee that exceeds 5,000yen
Example: If original international shipping fee is 8,000yen, you will need to pay 4,000yen (8,000 - 5,000 + 1,000yen)
*Domestic shipping, handling and consolidation fees not included in the discount
*Campaign Coupon can only be used once
*Campaign mail is provided by Tenso.com next business day from your purchase day
*Cannot use any other coupons at the same time
*Reservation items are not included
*Customer can use campaign coupon after using a consolidation service
*Cannot use campaign coupon in any other purchases in other shopping sites except for Rakuten.