Setu's own first awareness of it was on the Vache-qui-Rit box, where said Laughing Cow is wearing ear-rings of boxes of cheese with the same image on. My favourite instance of it was in the model village at Bourton-on-the-Water in the English Cotswolds, which was a perfect replica of the actual village at the time, and contained a model of the model village, which in turn contained a model of the model of the model village... not sure if there was a recognisable one within that.
Considering the prevalence of the device and of the term for it, and the importance and interest in it in all manner of circles, I'm rather ashamed not to have known about it before, but I love learning new things (as long as they're nice ones, of course...), and will look out for it now. It's also brought it yet further to the front of my consciousness that I want to read Borges, whose stories of rooms within rooms, libraries within libraries, reflections of reflections, Setu said his early diet of La Vache qui Rit prepared him for well ! My sister sent me a copy of The Other Tiger a while back, and lately I've been fascinated by Zoe Blue's strange and beautiful paintings and reflections inspired in part by his work.
Anyway, I wondered how I might try to produce something in the mise en abyme line myself. I was pointing the camera around in the kitchen, particularly at different coloured circular objects with shiny surfaces, thinking I might just do a collage, and it occurred to me one could do a collage within a collage...
I took it to the power of six, so there are five collages contained within the final one. It becomes rather compelling, not least because Picasa will automatically shuffle the images each time, and one has to keep recreating the order, only substituting the last collage made each time in the final space. I exported and posted it full size, so if you can embiggen it (there's an expression one doesn't hear so much now!) sufficiently, you can perhaps see what I mean.