How much does an ear piercing gun cost?

Hey everyone! I have an art project for school, and we have to bring in 5 creative items that describe us, and one is a piercing gun. I didn't choose that item, someone else did, and now I have to bring it in. I have to get the kind that you can use for as many piercings as you want, not the one for like 2-4 piercings. I'm going to Walmart, and i want to know if they sell them, adn how much they cost. Also, how old do you have to be to get one becuase I'm going with some friends, not parents. Finally, If they don't sell them to someone who is 15, do they sell the piercing kit with the gun to someone who's 15? Thanx!How much does an ear piercing gun cost?$13 from walmart

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