hiram88 said:
OT: I'd say the M9 in Modern Warfare 2. It just looks and feels so incredible!
The M9 is the standard issue side-arm for the US military, a great many police departments in the nation and is in the arsenels of many of the world's other military powers. The weapon is hardly creative. It is ubiquitous in real life and it makes it's appearance in virtually ever shooter set in a modern or slightly future time.
In terms of creative weaponry, there are a number of features to consider. Any video game cameo's of a real world weapon need not apply - there is no creativity in hijacking what already exists. This generally means that any weapon designed to fire a slug or shot, or made to beat, bludgeon or stab another player with is out. This unfortunately rules out greater than 99% of the video game arsenal and leaves us with weapons that often are only able to be leveraged in an offensive capacity though a tangential approach.
Examples include:
Painkiller - a glorified weed whacker with the usual string replaced with spinning blades. Realistically cumbersome, almost certainly ineffective, surprisingly entertaining.
Portal Gun - A weapon with no direct offensive capabilities. The mobility it provides allows problems to be solved from a number of angles. The intrinsic capability to violate various laws of physics (thermodynamics for example) means that the weapon actually holds the key to resolving any energy related problem, the most simple of which is the application of force to a particular location. Case in point: dropping a crate on a sentry turret.
Footballs, china, dinner ware and the other junk found in a suburban home - these items have appeared in various games with different functions. In zombies ate my neighbors, cans of soda were used as hand grenades. In Dead Rising, the same can's are simply hurled at the hoards of undead - slightly more effective than punching them to death...slightly. In Half-Life 2 a soda can (empty) can be used to fight the man.
It seems to me that creative weapons therefore tend to fall into three broad categories. Weapons that have no direct offensive capability but still maintain the ability to act in such a way, weapons found by forcefully applying a number of common household objects, and weapons derived from common appliances that have been modified in some generally absurd way.