One of the reasons I love these so much (besides their having been such a mystery to me for so long) is their whole space-age aesthetic, as well as their diminutive size.
I thought this would be a good time to put up a photo of the sculpture in front of the Atkinson Library, 1960 W. Atkinson Ave. I don't know anything about it. It would look good in front of a Lustron house though. That branch opened in 1961. The Lustron Company built its homes in the late 1940's, so they are not of the same time period, but somehow they have a similar anachronistic appeal for me.