Hehehe, Napty - you are a cruel overlord
But yeah LA Pyth can pretty easily forge Fever Fetishes. The problem is that thier fire magic really isnt good enough to support extended use of them so I'm not sure its worthwhile to invest really heavily in fetishes. If you found some strong indy fire mages tho, that'd make it worth your while.
Putting them on Satyrs seems like a waste tho, as amusing as it is. Even tho they are free (in terms of fort time) they are still assassins. Give them a skull talisman or the thorn staff (the 5N one) and they are actually pretty tough. Better to just use Scouts for a fetish since they are pretty common in the LA.