Online video game retailer Play Asia is selling a rubber coat cover for the Nintendo 3DS LL and XL that features Luigi himself, paunch and all.
The rubber case wraps around the 3DS and has Luigi's head on the top part of the handheld console, which connects with the lower half of his body in the base of the 3DS. When the 3DS is completely opened, the images come together to form a side-profile of Luigi.
Play Asia also has a Mario cover of a similar design. The covers are designed for the Japanese market but ship outside of Asia.