I was considering the following feat
Unorthodox Training: (requires proficiency with weapon)
Allows a monk to treat the weapon as a monk specialty weapon, allowing him to flurry with it.
The application is for a monk alchemist, to allow him to flurry with alchemical fire flasks.
Well, would this be balanced? (Yeah, I know, not too exiting).
Application: I am playing an alchemist monk & wish to flurry with alchemical fire & acid.
Do you mean a splash attack? Flurrying a splash attack is likely very unbalanced since you could get way too many ranged attacks hitting multiple targets.
That is indeed it, although it is a great way to lose cash. The character places his alchemy items in ceramic spheres and hurls them (like shotputs). The spheres cost a bit more then normal in exchange for making them a more tractable weapon.
Even if you find it too unbalancing for his alchemical shotputs, what about other weapons (say a spear or trident)?
Also - wouldn't a regular character with rapid shot be able to throw 2 alchemy items in a round (assuming he had one in each hand at the start of the round)?
Since Monk Flurry is now akin to TWF progression, I don't see much issue balance wise with any one-handed weapons. As far as thrown they should be light in my mind, seem to remember something about one-handed being more difficult to throw.
I'd be against making Splash Weapons or Improvised Weapons a selectable option for the feat, but something like Shot-puts would make sense, then just need quick draw and bunch of crafted orbs.
Just to be clear I'm think of a monk alchemist, not a monk/alchemist, I have no memory of how alchemist abilities work with additional attacks.
Even treating the orbs as +50% weight, they would still only weight 1.5 lb, still under the weight of all 1-handed thrown martial weapons except the switchblade, and half the weight of all 1-handed thrown simple weapons.
As to the alchemist, they have no special ability to make multiple attacks beyond what is provided by their base attack (they need rapid shot).