- - Which son collects batting helmets?
- - Hints at renovating helmets
- - World War I helmets
- - Protective helmets
- - Paranoid sorts, in slang
- - GIs' helmets, in slang
- - protectors of soldiers' domes
- - Paranoid types, slangily
- - Military headgear
- - Protective headwear
- - Protective gear
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