Hi, I was thinking about making some hats with the debian logo on them, and selling them to some friends, and possibly putting them on my website for sale. I found this page
https://www.debian.org/logos/#open-use and the open-use logo looked right for me. I also saw that it linked to the GNU licenses, but I just wanted to make sure that selling something with the debian image on it wouldn't get me into any trouble. Thank you for your time.