In many ways, interior design is about making your own personal statement by assembling elements available from a multitude of sources. You end up with something that nobody else has. At least that it how the process can go if you incorporate used or antique elements into your design framework.
Anybody can browse through a modern home furnishing catalog and order items. These things are frequently popular because they are both beautiful and practical, so they can be a big help to your design motif. However, by building around these new pieces with older items such as perhaps a set of shabby chic shelves or a repurposed old icebox, you can introduce an element of unique style.
There are many ways you can make your home your own but making it impossible to copy requires one-of-a-kind pieces that nobody else is ever going to be able to find or modify the same way that you did.