And so naturally they turned their needles on Kim Kardashian's derriere. Carlos told BuzzFeed Life that the inspiration came from combining two of their books: 55 Christmas Balls to Knit and Knitted Dolls (an apt combo).

The pair can usually knit very fast, he said, but "we are on tour right now, so it took Arne three evenings to knit her, because we were so occupied with other things. He could have knitted her in one day, if we were less busy."