This page from Umberto Eco’s The Mysterious Flame Of Queen Loana has always (nostalgically) reminded me of my grandfather’s Nativity scene, also using a mysterious “big bottle with no neck” to animate it.

At dinner, I asked Amalia about the Nativity scene. Indeed it had been my grandfather’s, and had meant a lot to him. He was not a churchgoer, but the Nativity scene was like royal soup: it was not Christmas without it, and even if he had had no grandchildren he might have set it up just for himself. He began working on it in early December, and if I looked around the attic I would find all the framework, which had supported the sky backdrop and contained lots of little bulbs in the front part that made the stars twinkle. «A thing of beauty it was, your dear grandfather’s Nativity scene, made me cry every year. And water truly flowed in the river, why in fact one year it overflowed and got the moss wet that had come in fresh that very year, and then the moss all bloomed with itty-bitty blue flowers, which it was truly a miracle of the Christ child, and even the parish priest came who couldn’t believe his eyes.»
«But how did he make the water flow?»
Amalia blushed and mumbled something, then made up her mind: «In that Nativity scene crate, which every year I helped to put it all away after Epiphany, there ought to be something, like a big bottle with no neck. You saw it? Well, I don’t know if folks still use them things or not, but it was a contraption, pardon my French, for giving enemas. Do you know what enemas are? Good, then I don’t have to explain, which that would embarrass me. And so your dear grandfather got the bright idea that if he put that enema contraption underneath the Nativity scene, and hooked up the tubes in the right places, the water would come up and then go back down again. That was something, I can tell you, forget the picture shows.» (1) 

Notes