Hi all

Can someone please clarify for me about objects you can and can't photograph for stock images. For example, if I want to photograph a child playing with toys with the emphasis on the toys in the hands, can I only use toys that look like they are very generic / could be made by anyone? I'm guessing all things trademarked e.g. even vaguely recognisable as disney are out. But what about the rest in between? Thanks!