Anno

I like the name - Alter. But then, maybe Alter::Ego. I don't believe the Object:: prefix adds much to it, since even so, looking at the name, one would ask "what the heck is Alter?". Seeing the ego method inside the package will give the "Aha!" - effect: so it's about the Alter Ego of an object, which is hidden to the outside! Nice.

But if you want to give it a "conventional" name - what about Object::Magic? It's that - magic, and relies on extension magic.

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

don't believe the Object:: prefix adds much to it

It doesn't add much when you already know that it's there, but if you're looking for some kind of module to help you do OO stuff you're likely to search CPAN for "object" and/or "class", since that's where a lot of those module reside.
"What should it profit a man, if he should win a flame war, yet lose his cool?"

what would you guess its name to be?

You certainly wouldn't try to find it by guessing its name, but looking it up on CPAN with a few keywords.

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}