I teach copyright law for art and design students. The answer is not clear cut- it depends on what types of copyright the logos are filed under. For instance, there are Creative Commons licenses that allow for people to use other logos or artwork created.

Here is where it gets tricky with the pissing images everyone talks about. IF you are doing a piece that is satirical – and using a trademarked/copyrighted image, you must alter the image enough so that it is not a replicate of the original. That could be changing the “f” for Facebook to a different font. Or add a wing to the bird for the Twitter logo.

Check out Chillybears out of Needham- they are not cheap, but can ensure that the designs are legal and make good quality stuff.

I would think, based upon my understanding of “fair use” you would be all set.

source: Digital Media Law Project

An important question for bloggers, citizen media creators, and other online publishers is whether trademark law limits their ability to engage in reporting, commentary, criticism, and other forms of political, social, and artistic expression. There is a threat, should trademark law become too robust, that companies and other trademark holders might use it to silence commentary, criticism, and unfavorable reporting. Such a “right to control language” would offend the First Amendment and seriously undermine the quality of public debate on issues of fundamental importance. The good news is that courts have consistently protected the public’s right to use the trademarks of others in order to engage in criticism, commentary, news reporting and other forms of noncommercial expression. As long as what you’re doing is really commentary, criticism, or reporting (etc.), and not a surreptitious attempt to sell goods or services, or to deceptively attract customers or readers you otherwise would not have had, you should be able to defeat a trademark claim brought against you. The bad news is that the law relating to this intersection of trademark law and free expression is complex and confusing. Neither Congress nor the courts have developed a simple and clear rule that protects your rights to use the trademarks of others for free speech purposes; instead they’ve developed a complex array of defenses to trademark claims that even lawyers find difficult to untangle. This makes it hard for a defendant to get a trademark lawsuit dismissed quickly with little expense, and it leaves bloggers and citizen media creators vulnerable to intimidation through the unscrupulous use of cease-and-desist letters. (The ideas here are based on William McGeveran’s excellent article, Four Free Speech Goals for Trademark Law.)

The heavy digs it baby!

That is a great shirt/sticker, but I would maybe drop the shirt/add the turtle shell…

If someone who is not Turtleboy like cafepress I don’t think TBS will get in trouble cafepress will just remove it. So you could probably move a decent amount of that sticker (because it is awesome) before it gets shutdown. I’m not a lawyer but I think if you use a 3rd party you won’t a DMCA takedown.