" Thank goodness that's over," she said, taking the crown off and throwing it across the cave. It hit the wall and bounced off with a harsh clang.
"You shouldn't treat your crown like that, Your Majesty," Cimorene said, retrieving the iron circlet.
"Of course I should," Kazul said. "It's expected. That's why we made it out of iron instead of something soft and bendable. ... "

― Patricia C. Wrede , Dealing with Dragons (Enchanted Forest Chronicles, #1)