Some details have been listed for the upcoming Super Mario Bros. 12 Die-Cut Notecards. If you are interested, you can check out the officially-licensed Mario product via this link from the shopping website. Take a look at the packaging with the photo located below this paragraph.
Designed with vintage graphics from Nintendo’s 1985 release of Super Mario Brothers™, this set of 12 notecards features the original 8-bit versions of Mario, Luigi, Toad, and Princess Peach. With just a few folds, each die-cut card transforms into a self-standing character that is fun to display or send to a friend. (12 envelopes are also included.)
The Super Mario Bros. 12 Die-Cut Notecards will be released in the North American region on the 15th of September. If you are a fan of Nintendo and/or Mario, you might want to check out the unique licensed product.