We currently have no low per*exp curios for winter starting characters and not even a way to make clothes once snow has been completly set, so I suggest;
1. fur shirt/fur pants, can be made out of dried fur, same stats as nettle clothes
2. squirrel hat, made with squirel dried fur and tail, mechanically same as sprucecap
3. maybe a curio made with snow and sticks/seeds, buti'm not sureif its really needed given that barkboats and conecows are still easy to make for the first day even during winter