I'm not entirely clear on the question - you pretty much cannot have blessings without references (at least not in perl5).

The purpose of bless'ed objects (references) is the ability to declare which package (or package tree if inheritance is used) to look for methods.

You can have references to built-in types (scalar, array, hash, glob), or to types created by bless (hopefully, the name of a package that has been loaded).

So ... I'm just not sure what you're referring to - perhaps some example code of what you're talking about might be in order?