I went to a yard sale in Chicago a couple of years ago which I secretly think was an art exhibition. They were selling the oddest collection of things- wigs, musical instruments, movie reels, peg legs, typewriters, etc. There was not a single typical yard sale item like old dishes and clothes. The guys holding the sale were young (under 35), but all of the items were old. When I commented on the oddness of the items for sale and asked it the items were old props or something, they said that these were not props and acted like they couldn't understand why I would find their collection of items to be odd. I like to think that they had spent months gathering strange things to sell off as an artistic statement.

I agree with Fire. They sell insulating foam for behind switch plates, which I presume is fire-safe. If I were to do this, I would put the paper against the switchplate, then a layer of insulating foam facing the wiring.