After reading a circle of answers, I feel that I should not have solved your problem. First of all, the lighters, chocolates and teacups you mentioned belong to different kinds and products, and they are very different in appearance and shape, so they cannot be used as approximate designs of the same product; Secondly, because the object of design protection is the shape of the product, what you said "the same design is suitable for different products" is not valid. As can be seen from the title, the design you mentioned should refer to some special patterns or styles that are suitable for different products and cannot be applied together; Finally, if you want to protect this special pattern or style design, you can adopt the form of copyright protection; Or apply for design protection for products one by one.
Above.