Stink Bomb

Adventuring gear, uncommon
  Made of a mishmash of mushrooms and roots wrapped in various leaves, this could pass for a healthy snack for a tanukin. But don’t be fooled, once lit, a noxious miasma of indescribable smells accompanied by thick smoke billow from the bomb.
  Bombs Away! As an action, you can light and throw this bomb at a point you can see within 60 feet. It explodes on impact, releasing the gas in a 15-foot-radius sphere for the next minute. Each creature within the area at the start of its turn must make a DC 13 Constitution saving throw against poison. On a failed save, the creature takes 2d6 poison damage and makes its next attack with disadvantage. Creatures that don’t need to breathe, are immune to poison, or that don’t have a sense of smell are not affected by this gas. Any creature that starts its turn within the cloud has disadvantage on Dexterity (Stealth) checks to avoid being smelled for the next 12 hours. A moderate wind (at least 10 miles per hour) disperses the gas after 3 rounds. A strong wind (at least 20 miles per hour) disperses it after 1 round.