I started a brand named Tension Collections a couple years ago now. My partner and i both have full time jobs and do it as a fun side gig.
Dont expect anyone to really give a shit or to make major money. Our plan has always been to put all of the money made back into making more stuff... were going to go until were broke or are over it. Its pretty tough to make a good profit from hard goods, so be patient and mindful of how heavy you order at the start. its a discouraging "career" move that youll most likely fail at, so have fun while it lasts. Good luck