You have to download the templates, make a diaorama out of construction paper or whatever, and upload a photos/video of it. Seems like a lot of work, but perhaps Francis can make an apperance...

5 winners selected will receive the following prize pack: 
one (1) Nintendo 3DS XL game system;
one (1) digital copy of the Paper Mario: Sticker Star game; and
one (1) $100 (or equivalent) gift certificate to the Nintendo eShop and a handmade papercraft trophy.

Entries will be judged on the following criteria:
(a) Spirit: How well you demonstrate your love for the Paper Mario franchise or the general Nintendo branding your diorama;
(b) Creativity: How well your diorama demonstrates creativity; and
(c) Quality: the overall artistic quality of your diorama as showcased to the judges in your photos or video.
Odds of winning a prize depend on number of eligible entries received and the quality of entries
Enter between 10/29/12 and 11/7/12