The whole idea is multi-function, convertible jewelry that simplifies and minimizes purchase expense. In other words, why pay for all kinds of neckwires when a few will do, as long as the "business" part of the necklace (pendant, artwork, etc.) is interchangeable. All that is required is to rethink the traditional clasp. Here is a short copper chain with two ornate clasps.
Now let's look at a pendant designed with components in mind.
Connected to the chain it looks like this:
Over the next few days I'll present more pieces with interchangeable connections.