Bespoke

Made to order, usually one-of-kind

The word bespoke has evolved from a verb meaning 'to speak for something', to its contemporary usage as an adjective. Originally, the adjective bespoke described tailor-made suits and shoes. Later, it described anything commissioned to a particular specification. In contemporary usage, bespoke has become a general marketing and branding concept implying exclusivity and limited runs.

This keyword could refer to multiple things. Here are some suggestions: