I answered your poll as a "no" simply to let you be aware of something when selling physical merch. It is often a very little return you will get from physical merch unless you get a special deal. I mainly just wanted to warn you because I care for others and don't want you actually losing money in the long run.
Just really be certain you will be making a reasonable profit. But physical merch, in most cases, if a very low return item. If you want to discuss more about what I know on the subject, I will happily answer questions and give advice to you.