Photos of products that ape the design / name of other products in some sort of misguided belief that this is a way to gain market share. "Deer Cell" for "Duracell," etc.
This does not include incorrectly-spelled "knockoff" DVDs or poorly-translated random text, though those are funny as well.
This also does not include products that you yourself have made and are now selling. I do so admire your courage and tenacity, but this is sort of the exact opposite of advertising. Do not be fooled.
Wait, let me say that again. This does not include products THAT YOU HAVE MADE.
Finally, counterfeit items that look exactly like the product they're duplicating, spelled the same way, exact in every detail -- don't care about those. That's what the "mutant" part is about. People don't get this. So I get to delete photos. It's win-win!
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Most importantly, really big special superthanks to all the pretty people who have been posting images, and a big sticky gold star for the foreheads of people mentioning this group to other people with interesting knock-off shots.