In 2011, the three founders decided to target that disparity by starting Formlabs, a company whose purpose is to design a simple, professional, end-to-end 3D printing package that individuals can afford.

ENGADGET: FORM 1 delivers high-end 3D printing for an affordable price, meets Kickstarter goal in 1 day

Now there are 5, 000, according to the Society for Innovative Medical Practice Design, a professional society of concierge physicians.

CNN: Is boutique medicine worth the price?

More recently, many states have begun offering a sort of middle ground: A variation on the traditional design -- professional sports team logos, calls to nature conservation, celebrations of the arts, etc.

BBC: Flags on car plates - right or wrong?