Years ago I worked for a startup that built industrial printing machines (I did the touch screen control panel bit) but the guys sitting next to me we're workin

Years ago I worked for a startup that built industrial printing machines (I did the touch screen control panel bit) but the guys sitting next to me we're working on circuit board design. We had our circuit boards pressed by an outside company. The guys were always getting one-offs of different designs made, usually for free as a "sample". If you have an idea of what chips you want, you might want to try phoning up a salesman at a reseller and asking about circuit board pressing too. If they don't do it, they probably know someone who does.