It looks like Gibson DOES make a double-neck guitar
It would appear I have to make a correction.
I literally just said Gibson isn't making a double-neck guitar at the moment. Well, I was wrong. I check out the latest guitars available and whammo, there it is, a Gibson Custom Slash Double Neck SG.
Well... what to say about this.
Let's start with the finish. "Aged" Ebony, which is Gibson's version of relic'ing.
The front of the guitar looks great. The back? Not-so much. There's a big spot where belt buckle rash would be were the instrument actually played regularly. That's part of the "aging" Gibson did. I'll say a little more about this in a moment.
Both fretboards are real rosewood, so that's cool.
Pickups are "Gibson CustomBuckers". I have no idea what kind of pickups those are other than the fact they're humbuckers and look PAF-like.
Aside from that, it's pretty much a double SG.
Yes, the price tag is insane for this guitar, but that's because each one of these is personally signed by Slash himself...
...but I hope he signs each one using a white or silver marker. The guitar is black, after all.
Does it come with the hard case? Yes. Does it come with a strap too? Yes, a special "Slash concho" strap. Certificate of Authenticity? Of course. Nitro finished? Again, yes.
Like the Epiphone double-neck I mentioned before, this is the right way to do a double-neck guitar with one 6-string neck and the other a 12. Again I will say that is the most useful setup for one of these.
As nuts as this sounds, I think the aging was done right on this guitar. And the reason I feel that way is that Gibson didn't go too crazy with it. It has body wear in the expected place it would be, and the yellowed plastics are correct. The fret inlays also appear to have correct aging done as well.
Obviously, this guitar is a special run and only those with deep pockets will buy them. That's fine because double-neck guitars shouldn't be regular run anyway...
...but I still think the Epiphone is the better double-neck buy.