Both the needle, air cap and head assembly can be purchased at almost any craft or hobby shop that sells airbrushes and airbrush parts. The airbrush trigger is what allows you to actually operate the airbrush. In a single action airbrush the trigger controls the air flow. In a dual action airbrush the trigger controls both the air flow and the paint flow. If you are at an intermediate level with airbrush art then The Ultimate Airbrush Handbook by Pamela Shanteau is for you. This book will show you all about airbrushing everything from t-shirts to home interiors. Almost all surfaces for airbrush art are covered at the intermediate level in this book. Airbrushing nails to airbrushing cars is explained in great detail to help you advance further no matter what surface you like to put your airbrush art on. In this case you are still going to use the alcohol but for airbrush tattoos it is to get rid of the oil on the skin and not to sanitize an area for a needle. Once you have removed the oil from the area the airbrush art tattoo will stick a lot better. This will give more life to the tattoo. Now that you are ready to begin airbrushing the tattoo on, you need to take your time and be careful of what you are doing. This will remove the oil that is on the leather. The oil will prevent the paint from sticking to the surface. Make sure that all the leather has been wiped down and that the alcohol has dried before beginning. When you begin you need to place a base coat of Opaque White first before you begin your actual airbrush design. This exchange allows you to not only surf other blogs for traffic but lets you put your blog in the Battle of the Blogs for a chance to win traffic as well as ranking. Either way you are getting your blog seen and this means your airbrush art is getting seen. Another ways to get your airbrush art seen is to take a look at some airbrush art websites. When choosing an airbrush compressor keep in mind that put airbrush art onto t-shirts does require a high psi. The psi setting should be between 40 to 60. Make sure that your compressor is rated for the type of work you are going to be doing. In this case it will be airbrushing t-shirts. When doing airbrush art onto t-shirts as a business then invest in a commercial air compressor.