The easiest way to improve the entertainment factor of your office is to start a "that's what she said" epidemic. A few well-timed TWSS's in the middle of some business meetings is the best way to start TWSS fever and after only a few short weeks you should reach  point of TWSS mania to the point where nobody ever misses a TWSS moment. If you're not into the whole TWSS thing you could always start wearing yellow rubber dish gloves to work every day and and ask everyone to start calling you "Sargeant Yellow Fingers."