[kida] has a highly innovative set of 3D-printable, musical fidget toys that play classic video game tunes. Of course there’s the classic Super Mario ditty, but there’s loads more. How … ...

Six AR cards (? mark block, Link, Mario, Kirby, Samus, and Pikmin) come with the Nintendo 3DS. View them with the 3DS’ camera to make the corresponding character appear on the screen.