Most artists find the using their airbrush without the needle cap gives them more control. Removing the needle cap is fine but should you hit your airbrush against something or drop it you could end up damaging the needle itself. So to take care of your airbrush make sure that when you are not using your airbrush that you replace the needle cap back onto it. The backgrounds for Walt Disney's animated movies were created using airbrushing. Airbrushing allowed them to create shadows and lighting tricks to achieve a more realistic looking background. While even this seems primitive compared to what we can do with animated movies as well as for airbrush art, this method did pave the way for both the improvement on animation and airbrush art. Some dealers also will offer low grade products for a low price making you think you are getting a deal. With low grade products you are not getting a deal at all. A good starter kit comes from Airbrush Bodyart. The kit contains everything you need to get you started creating airbrush art tattoos and then some. This is usually referred to as airbrush tattoo ink. To finish up the process you will need talc powder and 70 percent alcohol. The stencils are available in a wide variety of designs thus giving you almost limitless creativity when using airbrush art to create tattoos. The talc powder is to be applied to the tattoo after it has dried. With this video you will learn what you need to have an edge over a lot of other airbrush artists. Caricatures are seen in a lot of art and airbrush art makes for creating some really interesting caricatures. Kent Lind will show you how to create cool caricatures in this approximately 70 minute video titled, How to Airbrush Caricatures. This base coat will help protect the nail from the paint and help the paint to adhere to the nail better. Metal should be wet sanded to give a rough grainy effect. This rough grainy effect will help the paint to adhere to the metal. With metal actually being smooth the paint will have a hard time sticking to the smooth surface.