i am sorry but I couldn't get a sreenshot :( so I just put up a sand texture file :( i'm so sorry but I couldn't get one. This is a blender file. In it when you click the play button creepy smoke floats in the air. :) if you dont want it creepy then just right click the circles with the arrow coming out and press delete on the keyboard. Then click the delete button that pops up on the screen. :)

and you can use it however you want whatever the licence thing says!