Fire bombs

Fire bombs are weapons that various characters in the Inuyasha universe use. Mostly they're used as a means of evasion to help with speedy escapes, though on some occasions they can be a serious threat.

Renkotsu
Renkotsu of the Shichinintai was especially fond of fire, his main attack being the ability to spew flames from his mouth after drinking oil from his gourd.

After Ginkotsu's death, Renkotsu attempts to take Kōga's sacred jewel shards in order to increase his own strength so that he might defeat Bankotsu. However, after losing to Inuyasha in combat, Renkotsu gets desperate. He thought he could blow up Kōga and the others in a tight enclosed space, and survive the blast himself since he was revived by a Shikon shard. Renkotsu lights two sticks of dynamite (though in the manga they're called firesticks, and in the anime firebombs), and Inuyasha tackles him away from Koga and Kagome. Renkotsu throws the firebombs away at the last second out of fear for his own life.