The only one which has serious copyright concerns
is the
Wikipedia/Firefox "logo", which infringes two trademarks (and some
people are claiming is a "parody"). If someone will draw their own
version of this, please do so and put it on commons, it's quite cute...
It may be cute, but as I understand it such images aren't eligible for
inclusion on Commons, nor do I get how you think that someone "draw[ing]
their own version" will avoid the legal problems.
Well, the Firefox and Wikipedia logos are both copyrighted and
trademarked. Recreating them from scratch would at least solve the first
issue.
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