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There is no doubt that Harry Potter has one of the largest fan bases in the world. And these fans have expressed their love for Harry Potter in the most unique and enchanting ways.
They have got their skin tattooed with a unique way because the intriguing designs use UV tattoo ink to reveal a secret message when the light goes out.
If you are a true Potterhead and you're looking for some inspiration then check out this list of tattoos.
It was invisible until Harry said the phrase, "I solemnly swear that I am up to no good."