This store specializes in selling military commemorative sake cups, bottles, trays, and other related items from Imperial Japan from the Meiji Revolution to the end of WW2 in 1945. I have been an eBay seller since 2008 with 100% positive feedback (you can see the feedback here) focusing on these items.
Shipping for all items start at $4.49 a cup and then incrementally at $2 thereafter. Bigger items like trays, bottles, and dishes will cost a bit more, but still follows the same scale. All items posted by Hong Kong post e-express or registered mail (depending on the country). You can expect to see your item within maximum two weeks.