When Patrick Henry, Revolutionary War activist and politician, made a call to arms against Britain, he grabbed a letter opener, thrust it toward his chest and delivered his well-known line, "Give me liberty, or give me death." Very effective.
My collection of letter openers comes from antique shops and yard sales, and often feature personal engravings or business logos. A surprising selection (though far less ornate) are available at office supply stores, while stationery stores and boutiques offer a selections with more character, like this one we found at Izola.
The ABCs of Letter Writing / L= Letter Opener