It was Mrs afton, after all of her family died (except for William of course) she got all of Williams plans, and found out what he was doing, she saw the fun time blueprints, and made them for kids, she had no intent to kill with her animatronics
i would say thats not canon as freddy wouldve said it at the blob section due to him being able to identify the parts of animatronics and what they are capable of
the blob has funtime freddys face and some other funtine parts. also in ruined we see it again breifly alongside the glamrocks proving my point by the parts in the glamrock are too different and not mingling well were as afton who was repaired with glamrock parts as he still was mostly springlock
but the glamrocks were most likely inspired by the funtimes as there are recordings of the funtimes however arent blueprints as henry burnt them mostlikely with the buildling in fnaf 6
long story short:
yes they have them
we dont know the relation but can assume they are different enough from the original chest cavity that they arent recognised by the blob