How to control vermin?

[Tanuki]

Long story short, I have some thri-keen in my game whose schtick is that they can control vermin, and indeed have an army of vermin about to attack the PC's home base. By the Rules As Written, mindless creatures cannot be trained or controled with Charm Monster. So, my question to you is, what ways are available for the control of vermin? I have the hand-wavey I've been doing it (a feat which allows Charm Monster to affect vermin), but wonder what other ways there could be.

Thanks!

 

[Crothian]

Pipes of the Sewers, just make them better and effect vermin

 

[demiurge1138]

Verminfriend, a feat in the BoVD, allows characters to use Wild Empathy checks to influence vermin. Similar rules have sprouted up in Underdark and the Eberron Campaign Setting.

Demiurge out.

 

[domino]

Sulfur candles where you want them to not be, and some sort of bait where you do want them to be.

 

[CronoDekar]

Handwaving is probably your best option, and if it works then it's certainly not a bad option). As mentioned, ECS has a feat that allows druids of a certain sect to treat mindless vermin as a standard animal when it comes to wild empathy and enchantments (along with adding various vermin to available options for summon nature's ally). So your feat is certainly not out of line with the RAW