Perhaps this crown thing has been gone about the wrong way...

[Googi]

Now, since Karakaze took(or one of the other 2913989238 people have used) the crowns, the first way out seemed to be to steal them back. However, there is no reason the crowns cannot be recreated, in order for them to exist in the first place, someone needed to make them, obviously a person with great skills in crafting. However, I'm sure that multiple people can most likely come together with minerals and be able to recreate the Dustarian crowns.