Armor
It was a tradition of her people, a skill each one of them possessed, even of only a few were real masters. Creating armor something that could protect them when they fought to protect those who couldn't protect themselves, it was taught to all who chose to be exterminators, so they could fix or remake their gear if need arose. Over time a simple design could evolve to something intricate and closely related to the types of youkai the exterminator fought most often or needed protection against.
Since the destruction of her village, Sango and her brother were the only ones who could uphold the tradition and she wanted to one day teach the art of making armor of youkai hides and bones to her children.
She wasn't a master herself, but was pretty decent, joining various elements to suit her needs. Often, when Kagome went to her time, Sango would leave for a day to adjust her armor in the familiar smithy of her village.
She just returned from such a travel to find her friends sitting under Inuyasha's bed tree next to Kaede's village. Kirara landed near Kagome and Inuyasha sitting side by side, the former overseeing Shippou drawing something and the latter pretending he wasn't enjoying sitting next to the young miko. Kaede sat in the sunlight, writing something on a piece of paper while Miroku was seated next to her and talking about something.
"Sango!" Kagome waved a hand in greeting, followed by others. Sango slipped off of Kirara's back and let the cat go find a nice place for a nap. The exterminator smiled at the group and stood calmly when Miroku paced towards her, standing at her side.
"We missed you deeply, dearest Sa-Aaargh!" Sango grinned wickedly as the monk jumped away from her. His wandering hand found purchase cradled to his chest as he winced in pain.
"Huh?" Kagome blinked. Still grinning, Sango turned around to show the rest the newest addition to her armor., strapped snugly to her behind. Inuyasha and Shippou started to snicker, while Kagome covered her mouth with a hand.
"Is it covered by the hide of a hedgehog youkai?" Kaede said with a smirk on her face. Miroku groaned when Sango glanced over her shoulder at them and nodded.
An exterminator's armor was not a finished thing, It was always evolving, changing to fit the exterminator's needs the best.