Sorta of, Paladin can use ez-throw dynamite with out being an engineer. They can also use the various ranged weapons that drop thru quests or occasionlly off mobs, such as bag of marbles. I also remember getting a ranged fire attack once that I bought at the AH. It only had 10 charges and I never found another one. The only problem with most of these items is that they ar AE and tend to pull more mobs than you might want.