What metaphors are used in Johnny Tremain by Esther Forbes?

Examples of metaphors in Johnny Tremain:

"The narrow course of Tremont Street was filled to the brim and overflowing with the waiting scarlet-coated men."

Crowded street/ overflowing cup

"'That squeak-pig [Mr. Tweakie] is trying to horn in on breakfast."

Mr. Tweakie/ squeaking pig

“wicked round eye.”

musket barrel/ wicked round eye