What an intriguing study. I wonder if the idea of milagro's or Exvotos was considered as some kind of explanation for the unusual offerings. Perhaps a broken plate or bowl would refer to filling up ones life like filling up a cup. An arm as a milagro might be for prayer to heal a diseased arm.(?) The whole place must be haunted with peoples prayer's (and goose-bumps from the awed visitors)!
Something is not right. This message is just to keep things from messing up down the road