A kukri
Either return of the dogfather or a longer deregulator
Or my version of the argonne assault CG
[Linked Image from img411.imageshack.us]
3/32 inches in thickness and holes for lightweightness, res-c grips,and sharpened top. 8 to 8-1/2 inch length from grip to tip.
based on the argonne assault CG, ratmandu, regulator, and Maxam Hunting Knife.