Giant 3DS AR Card

A couple of people in Japan have made their own giant AR card. AR cards are those little Augmented Reality cards that the Nintendo 3DS can read and project 3D models on, like a Mii.

They made a huge one in order to generate a Mii the size of the 1/1 scale Tetsujin 28 that is on display in Kobe, Japan.

Source:
Destructoid
GoNintendo