Can put on airbrush makeup yourself?

You CAN, but I wouldn't recommend it for one reason: the equipment to do it is really, really expensive if you're not doing a lot of people. You need a compressor and an airbrush.

BTW, the "airbrush makeup" they sell at the drugstore is a ripoff: it comes in an aerosol can, and you're supposed to spray it on your hand then apply it with your fingers. If you're going to apply it with your fingers ANYWAY, why not get just regular foundation?