A great way to do this with paints that do not require heat setting is to place the t-shirt by itself into a sink full of cold water that has salt mixed into it. The cold water and salt will help to keep the shirt when it is laundered from fading or bleeding. Placing airbrush art onto t-shirts can be fun and exciting. If you are doing a stencil for say a dog then you would want to take your time and make sure that the eyes were the same size, the nostrils were cut out shaped the way they should be and so on. If you rush you could end up messing your stencil all up. The stencil is to aid you in creating your airbrush art and is a big part of the art process. This will help you to learn more how to use the airbrush to render broad designs as well as fine detail. Now that you can render the shapes you should move on to using stencils. This will give you a feel for stencils as most beginning airbrush artists will use stencils to create their airbrush art. Practice using stencils on a cheap surface and still using your black paint. Your airbrush will have a back lever as well that acts to shut off the air flow and paint flow when the trigger is released. If this should be come damaged then you could have serious problems with your airbrush. Don't worry though it is not hard to replace these parts should there be any damage. Your airbrush will have a handle on which you can hold onto the airbrush with. Beej Curtis also offers private 1 on 1 lessons for anyone wanting to learn in a more private setting. The private lessons are 3 day classes that will take you from beginner to advanced airbrush art techniques. If you have experience then start where you know and go forward advancing through airbrush art techniques. Another ways to get your airbrush art seen is to take a look at some airbrush art websites. A lot of these websites offer a gallery that artist can upload images of their work onto for free. This gets you seen by the webmaster of the site as well as other artists. Your work will be put up there for the sites traffic to see and thus getting you known in the industry.