L Emblem is a badge in Paper Mario: The Thousand-Year Door. At a BP cost of zero, this badge allows Mario to dress up as Luigi. Wearing both L Emblem and W Emblem, a badge that dresses Mario up in Wario's clothes, will result in Mario wearing Waluigi's clothes.  This badge is found in Poshley Sanctum. In the sanctum, this badge is at the top of the second portion. Mario must climb up all of the way using his spin jump technique. L Emblem is used to complete the trouble "I wanna meet Luigi."