The plastic foil looks like it could be good fun to play with, and not just for photography. I can see myself getting some and using it as a 'filter' to distort a landscape or still life and then painting (water colour/acrylic) the mosaic of colour to get an abstracted image
I found this on Amazon which looks the same as yours
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Yeah, the foil in the link is the same.
But I doubt that you can slap it onto your lens, I think the individual fields are too big for that. It only looks this great from more far away, on a few centimetres its pretty much transparent.
I will send you an example photo in a few minutes.