Impact Foam

This milky white liquid bubbles into a 1-foot-thick semisolid sheet of foam when splashed across the ground. You can spend a minute to apply a flask of impact foam to a 10-foot-radius area, or you can throw the flask as a splash weapon. The foam does not interfere with movement, but reacts strongly to sudden force. A creature that falls onto a sheet of impact foam ignores the first 1d6 points of falling damage and converts the second 1d6 points of falling damage into nonlethal damage. A sheet of impact foam dissolves after 10 minutes or when exposed to at least a gallon of water.