The possibilities with airbrush art are unlimited and only limited to the artist imagination. Any scene, any surface and everything in between can be airbrushed. Airbrushing looks realistic and saves time over hand painting. If you want airbrush done on any surface or for any reason and do not want to learn then there are many airbrush artists out there that you can hire for any of your airbrush art needs. Thus like the needle you will be unable to create desirable airbrush art. 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. Different airbrush art calls for different psi on your compressor. PSI stands for pounds per square inch and for automotive airbrush art you need a compressor that has a psi of 55-65. Iwata is a great name brand to go with and they offer four compressors that will work for airbrushing automotives. Badger is another good name brand that you can go with. The internet if full of inspiration for your airbrush art. Start looking at various images and keep surfing until you find the one that gets your creative juices flowing again. Print the picture that help you so that you can keep it around as your muse for as long as you need it. It may take awhile but with the limitless supply of images and artwork on the internet it is sure to keep you supplied with some inspiration. 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. Airbrush2: Concepts for the Advanced Artist by Radu Vero will help to teach the experienced artist more advanced techniques. By learning these advanced techniques the artist can start to create even more complex airbrush art. When a person looks strongly at your artwork on the hood of the model car they can really see the capacity of the skills that you have as an airbrush artist. Or imagine that no matter what size your project is, even the fine details are brought out to the point that they demand to be noticed. All this can be done if an artist takes the time to learn micro airbrushing.