@gannet @inarticulatequilter I've made one¹, and it's both pretty convenient and somewhat a hassle to deal with, depending on the day, the phase of the moon and the alignment of the stars (and what one is doing, I guess).
But the effort and price were low enough that I'd do it again.
¹ more like two, with interchangeable pieces, but one was for a costume and it had pretty useless objects such as fake punched cards for the Analytical Engine