Funny guns (NOT REAL WORLD LIKE)

What are the possibilities for adding "guns"? Hear me out, not real-world guns, but "Minecrafted" versions: a dispenser/launcher, a stick, a lever, and maybe a hopper for reloading... You could use arrows as normal projectiles, but they can be "spammed" rather than reloaded like bows, and even fire charges or breeze charges, snowballs, or eggs. I think that would be a fun idea. They could even make "water guns" by putting in a bucket of water, although I don't know how that hypothetical option would work. All the others would be perfectly feasible and easy to imagine in operation. Reload, pull the trigger, hold it down to keep firing. I think it's a clever+funny idea. It won't eclipse the bow or crossbow since it CANT be charged for more power and you cant choose the intensity or amount of force it uses.