Is there an easy way to remove the tough shells other than cracking each one with a nutcracker?

Her rigid style is a tough shell to crack.

But it bounced off the tough shell of a purple tortoise.

The American side of her is freewheeling bohemian with a tough urban shell.

You need people with stature and with a tough shell.

He claims that both have a tough outer shell but live a rich inner life.

He meant to die as he had lived, inside the same tough shell.

This woman had an indomitable spirit and a tough, sensible shell.

This tough shell is the hardest tissue in the human body.

The drive is encased in a tough shell that's both fire and water resistant.