I was off-handedly thinking about copyright issues lately, and there's something I'm wondering. I'm going to give a silly example so you know it's hypothetical.
Let's pretend I'm a painter by trade. One day, I set up and paint a still life. In this still life, I included Mr. Potato Head™. I finish the painting and put it up for sale. Could Hasbro™ come along and sue me? And if they did, would I be in the wrong?
What do you think? Should one avoid painting a nostalgiac scene of beloved childhood memories because something they loved back then is still trademarked today?