Here is RRAs version.
http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=441
A neat idea not sure if I like it though.

JYD#176
"dein Gott schickte mich zu zerstören"
"Sic semper evello mortem Tyrannis"
"Sometimes the chance of a zombie outbreak is the only reason I need to make many of my life's Decisions." General Delivery