Baseball bat all day long, you don't a long swing or poke to deliver a debilitating blow, you can hold it on any end or both ends, swing it forwards backward sideways, upper cut down jab forward thrust and my personal favorite the upward jaw breaker.

Don't hold it traditionally hold it at shoulder to shoulder distance so you can deliver blows from both ends so you can quickly deliver blow after blow.

http://www.youtube.com/watch?v=WVcW-dj26_o

Language warning

And its greener