The first type of new reward consists of two sets of twelve greeting cards, each including three different designs of characters from the Super Mario Bros. and Nintendogs series. Each set of greeting cards can be obtained for 300 Coins each.
The other new exclusive reward type includes three different sets of folders with Super Mario Bros. designs accompanied by matching bookmarks. A set of folders and bookmarks is a bit cheaper, at 250 Coins.
Those interested can register on the Club Nintendo site, where some new surveys have been recently added to aid in accruing those precious coins.