Mini Weapons of Mass Destruction

Since I've been having some trouble coming up with enough interesting topics for blog posts, so I decided to use the blog to just post on whatever.

I have discovered a website that has plans for several dozen different Mini Weapons of Mass Destruction.  For those unfamiliar, these are small, homemade implements made from common household objects and office supplies, designed for launching small projectiles such as paperclips, erasers, or pencils.  They can be found here for those interested. I have already constructed the "#2 Catapult" and the "Pencil Slingshot" and have decided to make the "Maul Gun" and the "Bow-and-Arrow Pen."  The object of this activity, clearly, is to see how many destructive objects and implements we can make out of the innocuous supplies in one's desk.  The combination of creating useful objects and using those objects for (small-scale) destruction is very fun.  Now if only I had some enemies on whom I could use these weapons of mass destruction....any volunteers?