The designs that interest me lately are to harder-to-find modern designs (20th C) by luminaries from the art world such as Max Ernst, Marcel Duchamp, Alberto Giacometti, etc.
Larry List’s book The Imagery of Chess Revisited (exhibition catalogue) is terrific in documenting some of those amazing sets - many produced for the 1944 Imagery of Chess exhibition & ‘event’. This includes set that preceded the 1944 show, e.g. the Hartwig/Bauhaus you included above, and those that have followed such as Lanier and the Ohme, which you also mention.
The Ohme and Hartwig are readily available, as is the beautiful Man Ray design (generally expensive though). Others are not.
Recently I've read posts asking for advice about what chess pieces to purchase. This is sometimes from a new collector and they would like some help picking a design. I'm working on a personal design project and not looking for specific manufacturers of sets. I'm looking for chess piece designs.
What do you think are the top 3 or 5 most unique, popular, notable, influential, innovative or historical chess piece designs? I'm trying to focus less on what people like or dislike and more on the design (love it or hate it). Bonus points if you can name the designer (or original seller/manufacturer) and year it was designed or first introduced.
For example, I'd probably list: