Harry Dresden's duster

Harry Dresden owns a black duster, enchanted to withstand, within limits, magic and fire.

"It's My Birthday, Too"
In It's My Birthday, Too, Dresden tosses his duster into the fire, much to Molly Carpenter's chagrin; the only way to bake a golem's slime hard before chiseling off.

Cold Days
In Cold Days, Dresden's old duster is destroyed, and Molly Carpenter gifts him with a new one.