Stinger

Stingers are dropped from the Hornets found in Underground Jungles.

With 20 Stingers and 15 Jungle Spores, you can craft a Thorn Chakrum, which is also a drop from Hornets and Man-eaters.

With 20 Jungle Spore, 20 Singer, and a Silver Broadsword, you can craft a Blade of Grass.