I'm sure the FBI will do all it can to enforce copyright, assuming the the owner complains. The odds are they wont complain, unless they feel it negatively effects their product or image in some way. Like all things on the internet, you take your chances. If you're really scarred about being taken to task on the issue, avoid like the plague, any morphs unless you control all the copyrights involved.

Here is an idea. Grab the sample photos that are put out to lure people to the FBB sites, and morph those. Most of the time the copyright on those photos are not enforced because they need the advertising effect they create and the more they are spread around, the better. Mark your morphs as such, and attribute to the original photos when possible. Pretty much show a before and after, and link to the site where the originals came from. Odds are, with that taken care of, very few people will mind you making a morph with their photos.

I've seen this one before. You're right. It's pretty awesome.

You are, and we love it. 

The answer is quite possibly yes. 

That's a nice find.

I can't believe that I have never see Mighty Mom before. Good find.

Didn't realize there was so much sex in comics. 

That's some funny Sh*t right there.