1.   As a staghorn grows, new green shields are produced from the tips of the rhizomes.

2.   Confronted with a tiny damaged figure of an Etruscan warrior, one particularly ingenious forger used part of an ancient vase to create a new shield for the figure.

3.   The new shields fit snugly against the older shields.

4.   The new shield is being used to protect the bearer against bullets and knives.

5.   The new shield allows greater visibility and is made of reinforced plastic that can absorb a greater amount of shock, officials said.

6.   When you invent a new shield, you will invent new types of spear.