Michael Snow wrote:
The problem overlaps somewhat with the problem of including images in templates, when those images are not truly free in every sense. For instance, consider the popular user boxes that are cropping up all over the place (for some examples, see [[User:NSR/userboxes]]). Many of these include images that are tagged as fair use.
For the most part, they *are* fair use - they illustrate the product. 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...