This will give a little protection to the needle itself should the airbrush happen to fall. A damages needle can be disastrous to your ability to create high quality art, because if you are unable to straighten a bent needle back out or the needle should break completely you will not be able to finish your airbrush art until you can get a replacement. The best air compressor to use is the Iwata Studios Series Silver Jet Air Compressor. While this one is the best one you can go with any small compressor that has an 18 psi. Preferably get an air compressor that will adjust between 10-18 psi if you do not go with the Iwata Silver Jet. To do airbrush art on nails you will need nail art stencils or nail art masks. For those that want to take it a step further it can also be fun and exciting business. T-shirts containing airbrush art are popular and unique to wear. What makes airbrushed t-shirts so unique is that one of a kind images can be created giving the wearer a shirt that no one else has. Thus making for a pretty fun hobby or profitable business. 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 video will go into all the details that you will need to know to create your own airbrush art caricatures. But as long as your project is made from the above material you can use water soluble acrylics for your airbrush art designs. Depending on which brand of acrylic paint that you go with, you may need to thin it down so that it flows freely through the airbrush. Also some acrylic paints require that they be heat set if used on clothing. Her book titled, Custom Automotive & Motorcycle Airbrushing teaches never before seen techniques. These techniques are her own exclusive techniques she created and she is sharing them with you. Shanteau offers visual DVD and vhs tapes to help other learn how to create airbrush art on automotives and motorcycles.