Over the false vest was a dark blue shell with 14 buttons on either side of the shell.

AI-controlled racers are able to use all the items except for red, green and blue shells.

At the corner of each eye she wore a little blue shell.

Now the blue shell expanded before him, and Lark saw the fight continue within.

He placed a signal tape in the blue shell of ordinary communications on the desk pad.

The thin blue shell covering his flesh was splintered in several places.

The female lays four or five eggs with pale blue shells.

A young snail, denoted by a blue shell, makes its way across her path.

The mites disappeared, leaving only an empty blue shell dangling from a transparent web.

Author doesn't handle being targeted by blue shells very well... it's pretty simple.