The truth is, any time you are trying to make money off of a product produced by someone else without their express permission, there is the possibility you could face legal action. There are "Fair Use" laws that give some leeway here and, if you intend to continue with this project, you will want to become very familiar with them. However, you need to remember these companies have high priced lawyers to help protect their product. Even if you think you are within your rights, you may find yourself in a nasty legal situation you can't afford to fight.
Now, if you want real legal advice, you should discuss this project with a lawyer. I am a software developer who has studied Copyright laws a little to know how to protect my own assets but most people here in the forums, myself included, really aren't qualified to give legal advice on your project.
I hope this helped and good luck with your project (whatever it turns out to be).