Weird Machine Blox Fruits: craft the Skull Guitar

The Weird Machine is the NPC in the basement of Haunted Castle, in Third Sea, who crafts the Skull Guitar. Peculiarity: it is literally invisible until you complete the Skull Guitar Puzzle. As long as the puzzle isn't solved, you can walk past it without seeing anything.

How to get it

At the basement of Haunted Castle (Third Sea), near the machine located across from the entrance of the descending staircase. It appears only once the Skull Guitar Puzzle is completed.

Crafting the Skull Guitar

Once the Skull Guitar Puzzle is solved, it crafts the Skull Guitar for you in exchange for:

The Skull Guitar, the gun the Weird Machine crafts once the puzzle is solved

Material	Quantity
Bones	500
Ectoplasm	250
Dark Fragment	1
Fragments	5 000

Good to know

It has no character model - there is nothing to look at, just like the Mysterious Force and the Sealed King.
As long as the Skull Guitar Puzzle is not completed, it is simply absent from your screen. If you don't see it, it's not a display bug, it's that the puzzle isn't finished.