Alchemy
This one is slightly outside the box thinking! What happens when you just can't think of anything to draw? Well as far as i can see the idea of Alchemy is do help you draw random shapes and patterns in the hope that it will spark your imagination! You know when you was younger and you would try and see faces and things in clouds? well it's kind of like that!!.
So if your feeling creative and need some ideas, fire up that imagination and Alchemy and see what you come up with.