I can't see Sariel writing to Father Christmas, but she's on the nice list. :)

She has a number of little models of aircraft and spacecraft from different eras, done in things like carved wood and spun glass, and I can see someone or other thinking it was appropriate that she get another. If not that, then possibly somebody got a bright idea to give her a seedling plant or two for the Milliways gardens. That might be fun, actually.