tigerdoe mob cap - white mop hat bonnet colonial costume accessory, revolutionary dress up (white mob cap) tigerdoe white mob cap bonnet - adult women's colonial costume dress up cap - by tigerdoe. white mob cap is a one size fits most. easy to put on and remove. this mob cap costume dress up accessory is a great way to bring to life colonial history. can be used for a nurse or a servant costume great for halloween, school play, or any dress up event.