When I first read dirk Gently shortly after it was published, and got to the Sofa bit, I really wanted a wireframe simulation of it as described in the book, but as screen-saver[1].

These days most if not all people no longer have screen savers, so that wish is likely to forever remain unfulfilled.

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[1] I also wanted the rotating Starbug wireframe from Red Dwarf, but to my knowledge no-one has done that either.