EDIT: also here's the page at Animate, it seems like CDJapan and Animate are the only places stocking it so far...MAAYA-4
Maaya Sakamoto/30minutes night flight Hatsubai Kinen Special BOX (Stamp
Sheet/Special towel/Letter Set)[Limited Release] GOODS
5714 yen US$47/121.33 Release Date:2007/03/31
Description:Collectibles box set release from Maaya Sakamoto commemorating her
upcoming tenth anniversary album "30minutes night flight." Set includes stamp
sheet (10stamps, each worth 80yen with a Maaya Sakamoto original design),
scarf/towel, and letter set.
URL - http://cdjapan.jp/d.html?KEY=MAAYA-4
http://www.animate.co.jp/newrelease/new ... v0321.html