Wannabe, where in WA do you live. Come spring there are berries, and bulbs, spinich seed weeding.....you are not quite old enough for peas, but if you have access to any agracultural areas there are summer (and some spring/fall/winter) work to be found for young folk in that area. There is always yard work in more urban, suburban areas....$10/hr their equipment, $20/hr your equipment. A lot of people would rather pay to have their yard work done than do it themselves.
Ag is one of the few areas the Unions have not put off limits for kids (through legislation) the Unions don't like cheap compitition and the unions are politically strong in WA.
There are other things you can do, like volunteer where you would like to be employed later, but you cannot be "paid" for the work...it is just a way to get your foot in the door. Probably the most visible of these kind of volunteers is the candy stripers at your local hospital, but that is not the only place...you say you want to be a gun smith...find a gun smith that will allow you to help, while you learn.