Where can I buy new knickers, slips and socks for my felicity doll? Or will they do that at the doll hospital?

My little sister drew on those items and messes up her hair if I and her to the doll hospital I know they'd fix her hair but would they clean those items or give me new ones?? If not where can I get those items. (don't tell me unless you are sure they have it) thanks help quick God bless