You made a card stand for the Boston Celtics? The Celtics own that logo, selling it is clear trademark infringement. Same is true for most (all?) of the images on the post. Just because a customer provided the image does not mean they own the the trademarks or copyrights

For sports teams licensing their branding is an important business and they protect it fiercely. They regularly take legal action against small print shops, and even bars just for using the term superbowl to promote events.

Yeah no that's definitely copyright infringement.

Lol. that's not how this works.