"In this tutorial, we'll make a scene with flaming bombs pouring from the sky. This tut is made to show some down and dirty Photoshop tricks that beginners can quickly pick up. It also includes some relatively advanced techniques to help budding designers enhance their workflow. Let's get started!" Jake Ruesch
Here is a link to the written version of the tutorial How to Create a Surreal Scene of Flying Bombs on Fire and the video version is below.