Yes, products can be beautiful. The answer to the second question is subjective because it will depend on our own taste and hobbies. For some, makeups are their only treasure and other people see their brand-new car as the most beautiful product or thing they have. What makes a product beautiful will depend on how you plan to use it.
But I believe that quality is what makes a product stand out from the rest. It doesn’t matter if you have a dozen of shoes if those weren’t made of quality materials. The most beautiful product I own is my HP laptop because if not for it, I wouldn’t be able to work, type these words, and answer these questions.