Of course, they're adopted. The kids are obviously Polish.

The tin man didn't have a heart and the tin woman didn't have birth control.

When the Tin Woman gave birth to shiny steel twins, the Tin Man knew she’d been smelting with someone else.

Obviously, it means dull parents can have bright kids.

You kids think you're better than us because you're shiny? Just wait till you get to our age... or it rains.

Later that night, Trevor left his family to go to the foundry and got hammered.

“I see the Osbourne’s aren’t the only heavy metal family in the neighborhood.”

It's become increasingly common for metallic couples to adopt outside their particular alloy.

So THIS is why I should take anti-oxidants!

It's beautiful to see mixed-metal families.

"Kids! We're not that rusted! Please don't put us in a home!"

"Fe2O3.nH2O! Fe2O3.nH2O! Nyaa nyaa nya nya nyaaa!"

Daaaadddd!!! Timmy won't stop sticking magnets on me!

“Yes, of course you can hug your grandpa, but be careful because he dents easily.”

They were named the greenest family in the country because they can actually recycle themselves.