を縫って

… sew

→ を
phrase Rare #34,500
… sew を marks the item being sewn, and 縫って is the te-form of 縫う (to sew). The te-form connects to what follows; with くれる, the sentence can mean someone sewed something for you or someone else.
JA: 母は私に浴衣を縫ってくれた。
EN: My mother sewed me a yukata.