4 things about Sansa on the island.
1. Sansa had modern plumbing explained to her by Susan Pevensie. She is not proficient in using it and has to get into a cold shower and gradually add hot water or she scalds herself. She does not mind this too much due to the tropical heat.
2. Sometime after genderswitch Sansa, a little embarassed at knowing nothing when staying with Moril, asked Robb for some lessons so she could at least manage if she had to. So she can now build/start a fire if needed, gather firewood, make tea over the fire (it's always terrible). She doesn't like doing these this sort of thing though so won't if she can avoid it.
3. She is in the aftermath of her tooby crush of Edmund experimenting with improperness based on advice from Johnny Storm and the fact that being proper never got her anywhere. This allows her a much wider range of choice from the clothes box.
4. Sansa has a collection of needles, made of both metal and bone. If your pup wants to sew, she'll lend you one. If your pup can't sew and wants to she will probably offer lessons.