If you're more of an espresso fan, you can definitely splurge for the originals. They're available on Etsy in this listing https://www.etsy.com/listing/1647417483/1970s-carlo-giannini-italy-black . And I suspect that other sets are available elsewhere.
The pictures in this listing (or one like it) are likely more than detailed enough to build a model if that's your sort of thing. And literally a minute of searching was sufficient to find some stainless steel cups which seem compatible with this sort of modification. https://amazon.com/Stainless-Espresso-KITCHENEXUS-Insulated-Unbreakable/dp/B0C9SZHFKD . This seems like a pretty straightforward adventure in modeling & printing — well, as straightforward as a printing project can be.
