You can sell the pugs you make with this pattern, just don’t claim the pattern as yours. I’m sure you’ll manage to make some money selling these, or give it as a cute gift!
Because this is an amigurumi project, it is recommended that you yarn under for the whole project. For those who don’t know, yarn under and yarn over are two ways of pulling the yarn with your crochet needle, so if you’re confused, you can always search it up, it is surprisingly easy! But still, yarn under just makes your fabric more dense, meaning the stuffing will be hidden inside the amigurumi. The yarn over is a looser fabric, perfect for clothing, not amigurumi