Mine's

Can I borrow a pen? Mine's on its last legs.

What's mine's yours.

Mine's bigger than yours.

The truck arrived at the mine's entrance.

"Is this your cup?" "No, mine's blue." "Blue with a heart on it or just blue?" "With a heart on it."

Piggy banks are usually shaped like pigs, but mine's shaped like a kangaroo. I still don't know why.

Can I borrow your mobile? Mine's out of juice.