Related Clues:

• Beanies
• Berets and beanies
• Limits
• Excels
• Uppercase letters
• Headline features, briefly
• Toothpaste-tube tops
• Mushroom heads
• Upper case, for short
• Long letters?
• When they're locked, you look like you're shouting
• Baseball hats
• Kids' gun ammo
• Play ammo
• Bold alternative?