Rusty Needle

Rusty Needle is a Weaver's Primary Tool.

Source
Rusty Needles can be obtained as a quest reward or purchased from vendors.

Quests
Rusty Needles can be obtained as a reward from the following quests:
 * Way of the Weaver

Vendors
Rusty Needles can be purchased for from the following vendors:
 * Syneyhil - Limsa Lominsa Lower Decks
 * Admiranda - Old Gridania
 * Yoyobasa - Ul'dah - Steps of Thal