I'd go along with (conceptually) the idea that these are representative of 'fertility' symbols ...
do tell us where you've found these little items & like maybe what they're made of , if you would please , mwalt1988 .
I've seen many examples of 'local craftware' , so I'll say the obvious : mat'ls are important for identifying origins (&values) .
I have seen some very amazing (from very simple mat'ls) 'stone idols' of the local-crafted type , one comes to mind that was amazing to me as a craftsman , because it was made from dirt & glue !