A dog owner created a custom 3D-printed nose guard, called SnoutCover, to help their dog Billie with Discoid Lupus Erythematosus (DLE), a condition that causes skin lesions and pain on the nose. The owner designed and printed multiple prototypes before finding a version that worked, which has helped Billie's nose to heal. The design is now being shared for free, and the owner is offering customized versions for other dogs. The SnoutCover is made of flexible TPU and has ventilation holes to keep the nose moist and comfortable.