Well, this is nothing much, it's my first icon ever.
I am making a goblin map and I need such icons, but there was no explosive barrel anywhere, so I made one.
It may be simple, but can be useful as an item/spell/unit [if you are making a timed demo charge perhaps?] icon.
Keywords:
barrel, varrel, tnt, explosive, explosion, goblin, boom, bang, charge, demo, bomb, dangerous