Indeed as the title says, there is a Kingdom Hearts II Jigsaw puzzle out on the lose, of the Kingdom Hearts II Cover Image, and the World Navigation booklet image as well. The Jigsaw Puzzle comes in two versions, the 1000 piece puzzle which costs. 2,800 yen (Around $24.00) and the 300 piece which is 2,000 Yen (Around $17.00) it is unconfirmed to rather an english version of this is going to be released or not. But you can find more info on this (in Japanese)
http://item.rakuten.co.jp/jeijei/d1000-271 (1000 piece version).
http://item.rakuten.co.jp/jeijei/d300-195/ (300 piece version).
http://item.rakuten.co.jp/jeijei/d1000-271 (1000 piece version).
http://item.rakuten.co.jp/jeijei/d300-195/ (300 piece version).