Cigars are not contraband. You can send them, unless they are from a small isle. You are shipping to an APO?
I would take them to another post office. COmplete the forms stating there is personal hygeine and other items. No need to be specific. Remember, cigars are sent to the troops everyday, along with chewing tobacco, gum, food, etc.
This the law regarding sending cigars via the mail.
http://www.usps.com/communications/newsroom/2010/pr10_060.htm
Cigars are exempt.