You don't have to sell similar items in your store. So if you want to sell clothing with your printed designs on them and mugs with your designs on them and then kites, bookmarks, notepads all with your own personal designs on them, that's fine.
If you are having those items printed for you - such as using Printful or Printify, then you need to list that company in your Manufacturing partner section so that people know you don't personally print the items.
Other than that, I'm not sure what you are asking.
