Rule 34 Dev - 2023 anthro balls beard belly christmas christmas_clothing christmas_headwear clothing costume detailed_background doritomon elder elderly_anthro elderly_male erection facial_hair fur genitals grey_body grey_fur hat headgear headwear holidays male mammal master_splinter mature_male moustache murid murine old old_man overweight overweight_male penis pink_nose rat rise_of_the_teenage_mutant_ninja_turtles rodent santa_costume santa_hat solo teenage_mutant_ninja_turtles|10488231656