Well, he might get a tattoo of the Rasengan on his palm. Since the Rasengan is one of his signature moves, it would be a cool and meaningful tattoo. He could also have a tattoo of his master, Jiraiya's, book mark. It would be a way to honor his mentor. Additionally, a tattoo of the chakra pathways on his body could be an interesting concept, highlighting his ninja powers.
In some fanfiction, Naruto could get a tattoo of the faces of his friends. This would be a very sentimental tattoo, showing how much he values his relationships. For example, a small tattoo on his chest with Sasuke's, Sakura's, and Kakashi's faces. It could also be that he gets a tattoo of the ramen bowl from Ichiraku Ramen. Given his love for ramen, it would be a humorous and characteristic tattoo.
Another idea is that the tattoos are a curse. An enemy of Konoha placed a dark curse on Naruto that manifests as tattoos. These tattoos slowly drain his chakra and he has to find a way to break the curse while still being able to protect the village and his friends.
One idea could be a story where a young ninja discovers an ancient ANBU tattoo on their body that holds a hidden power. They then embark on a journey to find out the origin of the tattoo and how to control its power. Maybe it's linked to a long - lost ANBU clan.
One idea could be that Naruto gets tattoos as a form of self - expression in prison. Maybe he uses the tattoos to tell his story or to mark his growth. For example, he could get a tattoo of the Hidden Leaf symbol but with a twist, like it's broken in some way to represent his broken relationship with his village while in prison.
Well, in fanfiction, Aang's tattoos often play a big role. They can be a way to show his connection to the Air Nomad culture that was almost lost. It could also be a visual cue for his development as a more powerful and wise Avatar. Maybe in some fanfics, the way he gets his tattoos is different from the original story, which adds an interesting twist to his character arc.
One idea could be a story where Percy uses his tattoos and piercings to express his rebellious side. Maybe he's in a world where such things are not fully accepted, and he has to fight against the norms.
One interesting story could be about the spiritual journey Aang undertakes while getting his tattoos. Maybe he has visions during the process that give him insights into his future role as the Avatar. For example, he might see flashes of the challenges he'll face in bringing balance to the world.
Maybe the runic tattoos are a sign of a hidden heritage for Harry. They could be linked to a long - lost family line that had some unique connection to runes and their magic. This would add a whole new layer to his character and his place in the wizarding world.
There could be a fanfiction where Naruto gets tattoos as a form of rebellion. Tired of being the 'good boy' of the village, he decides to get tattoos that are frowned upon by the elders. These tattoos might have a deeper meaning related to his past, like markings that represent his parents in some way. This causes a stir in the village, but Naruto stands by his decision, which also helps him grow into a more independent and self - assured person.
In fanfiction, some popular Naruto tattoos include the Uzumaki clan symbol. It represents Naruto's heritage and is often depicted on characters as a sign of their connection to Naruto or the clan. Another one could be the Sharingan tattoo, which is related to the Uchiha clan and is often used to show a character's power or their relation to Sasuke.
A possible reason could be for self - expression. Naruto is a very expressive character, and tattoos could be another way for him to show who he is. It could also be a way to distinguish himself from other ninjas.