Can I make a T-shirt/coffee mug/mouse pad/poster with an Irregular Webcomic! strip printed on it?
Sure! I have released all strips under a Creative Commons licence which allows you to use them for any non-commercial purpose provided you give me proper credit. I still own copyright in the strips, but I am allowing other people to use them under the specific provisions of Creative Commons BY-NC-SA. You may not sell anything with my comics on them! If you do, I’ll send Draak around to beat you up.