2005 Toned Lincolns

Whats up with the 2005 Lincolns?? I take all of my change, and toss it on my driver seat in my car... and usually every few days, I gather it up, and toss it into my water jug. I have noticed however, that most of the 2005 (and only the 2005) end up toning to some crazy red and blue colors by the time I get to them. They look absolutely amazing just after a few days. Is it something in the penny (I dont think they were made of a different composition then) or is it something in my a*s?
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-Amanda
I'm a YN working on a type set!
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Hell, I don't need to exercise.....I get enough just pushing my luck.
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-Amanda >>
And what exactly are you eating? Have you tried sitting on silver?
Actually, you need to post some pictures!
The name is LEE!