MicrostockGroup

Probably depends on the inspector you get. Doesn't matter if its a multiple chain store which may have sold gazillions of the dress: it's pretty identifiable. I wouldn't even think about using it for RF.

This is very good advice.  If models are wearing a specific design, even if it is pretty generic (cats, fish, hearts, etc.) I have had them rejected.  Not because they actually were trademarked, but because the inspector didn't know if they were or not.  Better to go with plain clothes and save yourself the hassle. 

i got the cutest reject from Bigstock the other day:

That little bit of politeness really made my day.

The issue is the tiny teddy bear thingy on this cap (as you can see, DT didn't object):
http://www.dreamstime.com/little-child-playing-in-the-snow-thumb12463105.jpg

How sweet!  I really appreciate when the reviewers take time to add personal notes, although of course I realize they can't do it often...

And they are right about the adorable child