A tattoo artist works in London in 2014. This September, a Colombian organization is offering to edit erroneous tattoos — free — and hopefully interest young people in the value of good grammar and spelling. Oli Scarff/Getty Images hide caption

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Not-so-authentic Irish: a Celtic knot tattoo. Tattoo parlors in Ireland say almost all the customers requesting this are American. Christa Burns/Flickr hide caption

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Tattoo artist Peter van der Helm, shown in his studio in Amsterdam in December 2013, has set up a business to preserve the tattoos of the dead. Michael Kooren/Reuters/Corbis hide caption

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San Francisco 49ers quarterback Colin Kaepernick is the only player in the newest edition of the Madden NFL video game franchise to have his signature tattoos faithfully rendered in the game. EA Sports hide caption

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This pose is required when thinking innovative thoughts. Andreyuu/iStockphoto hide caption

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