There's always been a bit of special place in my heart for an unsung hero in the choices of zombie dispatch, and that's the good old fashioned baseball bat. If you're lacking in a weapon, many homes and small businesses keep one handy. Anyone can handle a bat, regardless of age or experience (you don't need to be a young million-dollar contracted athlete to wield one effectively). Sure it's flawed and it'll more than likely shatter or bend at the most inopportune moment (Murphy strikes again) but not with this beauty!
After a demonstration like that I am proud to have one of these in my arsenal. Some slight modification like griptape and a wrist loop and it'll be perfect.