I want to put this politely, since I am sure you are sincere if a little ignorant about stealth...you make ordnance stealthy by hiding it inside the airframe. Things with edges and angles like pylons and missile fins are radar replectors, so you try to minimize them in the airfarme design. Material properties also matter. Pylons are usually 'hard', while skin coverings can be made from stealthy composites. Theres a lot more to it than this, but I think you will get the point.
Dont take my 'ignorance' comment the wrong way. All ignorance is cured by education.
Thats what they said about airplanes a few short years ago..