Amazon Japan is now offering international shipping for the December 2018 issue of CoroCoro Comic.
Inside CoroCoro Comic is a physical version mockup for Together! The Battle Cats. Included in the mockup are a copy of Nyan News and Part Nyaa Mikuji. Two other freebies are the first Kirby Collection sticker featuring Festival Kirby, and Super Smash Bros. Ultimate scoop book.
Pre-order here (ships worldwide).