Possible Clues:

• Unusual stigma found by church
• Uncom-mon
• Not many a mark like this, to start with
• Hard to obtain
• Rare fright, catching cold
• In Madagascar cereals are in short supply
• Like capital letters in many E. E. Cummings poems
• Getting caught in the panic is unusual
• Mark begins to be unusual
• Like hen's teeth, so to speak