Smoke Pellet
Source Advanced Player’s Guide
This small clay sphere contains two alchemical substances separated by a thin barrier. When you break the sphere, the substances mingle and fill a 5-foot square with a cloud of foul but harmless yellow smoke. The smoke pellet acts as a smokestick, except the smoke only lasts for 1 round before dispersing. You may throw a smoke pellet as a ranged touch attack with a range increment of 10 feet.
Create: Craft (alchemy) DC 20