The first weapon that comes to mind is the rain-roof bike. Combined with color coordinated fenders this thing is as dry as a martini at the Chop House and twice as much fun to boot. The downside is the non-aerodynamic qualities of this rig-a-pig. I believe that Trek and Armstrong tested this as a TT option and graded it a complete NO-GO.
The perfect compromise of both protection from rain drops, yet a design that slips through the wind with ease, is pictured above. Yes you can look for me blasting to the front in this semi-wearable-bike. Of course it will be sporting the red-white-black livery of my team. I'd rather stay home than wear a blue kit. Take that you mean 'mother!