Has anyone in the past few years found or received a blue quarter or any blue US coin?

I recently got change from a store, and I was given a blue quarter. It is a 2002 US quarter with the state of Louisiana on the back. At first I thought someone colored it in, but I it was too well done. i looked on the internet and found that someone last year found a blue New Jersey state quarter. Is it a mishap in printing or some special edition quarter? Any info is appreciated!

Answer:
I have seen this before and I always thought someone did it using a magic marker or something when they were bored. Other Questions and Answers:
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