(Signature) Signature

This one is rather short and to the point. This little diddy deals with signature guitars, specifically Les Pauls; so here it is. How can someone have a signature Les Paul? A Les Paul is a signature guitar named for yep you guessed, Sean Connery, I mean Les Paul. I mean, is there going to be a signature (insert famous guitar player's name) Dimebag Darrell guitar? No, because it's stupid. It's one thing to have a signature Stratocaster, that is just an existing NON signature guitar. A Les Paul is a god damn Les Paul.
I mentioned this to a former coworker who was a drummer and his response was: "Well, what about signature Vic Firth drumsticks?" My answer was simple: "It's completely different. Vic Firth is a guy and that's the name of his company, like Fender was Leo Fender's company or Marshall was Jim Marshall's company. Les Paul had a signature guitar through Gibson. It's already a signature guitar to begin with. It doesn't make sense."
There you have it, signature series anything, of an already existing anything doesn't make sense.