This is, unquestionably, the best rug ever featured on Trend Hunter, and I don't feel you can prove me wrong on this one.
The Snake Rug (design name Eva) is by Britta Knuppel and is a glorious hybrid between a snake shaped rug and a hot water bottle. You plug it in like you would with an electric blanket and it heats it. If that was not exciting enough, it can be assembled as you wish.
I want the winter to be here now (currently melting in the London heat) just so I can try this out.