Here is a very quick script i made to attach a follicle to a mesh. I found a lot of scripts like that on internet, but not really satisfied with it, too heavy, for most of them, so i did my own (also because i like to understand exactly what i do =)

 

First, you load your object (it works with shapeDeformed as well), then you load (or create) a locator, and you give a name to your follicle....

Then, you click "attach the follicle", and your follicle is on your mesh, but attracted by the locator ! So you can use your locator to place your follicle. Once it's done, just click "remove the locator and everything useless" to clean every node created during the operation, only your follicle stays =)