Exactly as Tsuarok says. If you want a fancy-schman cy one, just decide to pay more than the list price.
In Augmentation, there ae even some cybernetic implants that work like that. Engraved Datajack, for example. Sure, you can get a simple pattern, maybe a phrase, for the basic price. But if you want gold inlay, and a few precious stones mounted on it? Pay
more.