Story highlights There are at least 72 items that are prohibited

Swords, sabers, switchblades and ... light bulbs

(CNN) Slingshots, sledgehammers, rockets and ... tennis balls?

The city of Cleveland has explicitly banned at least 72 kinds of weapons, gadgets and assorted hardware from the 1.7 square-mile "event zone" surrounding next week's Republican National Convention.

Not on its extensive list: Guns.

JUST WATCHED Seventy-two items banned from RNC event zone Replay More Videos ... MUST WATCH Seventy-two items banned from RNC event zone 01:25

Ohio is an open-carry state, so local officials said they cannot prevent licensed gun owners from carrying their weapons around the external security perimeter.

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