Skulls and Shackles
A squibbing costs 20% of a ship’s base purchase price.
It requires a minimum of 1d4+4 days to complete.
The craftsman squibbing the vessel must make a DC 15 Craft (ships) check to complete the job.
Once a ship has been successfully squibbed, a DC 20 Perception check is required for someone familiar with the original ship to recognize the squib for what it is. The observer may only make this check after observing it closely for at least 2 minutes.