If you don't need one of these, then you have the whole world in your hands

Edelrid Ropetooth Single Hand Knife
Trango Piranha Alpine Knife
M&P ''''magic'''' Assisted Opening Knives - Knife W/3.6'''' Drop Point Blade

Zombie Knives

Zombie Brigade

Petzl Spatha Knife
Sog Fasthawk Knife - Fasthawk Knife
M&P ''''magic'''' Assisted Opening Knives - Knife W/2.9'''' Clip Point Blade
Ka-Bar Tdi Law Enforcement Knife - Tdi Law Enforcement Knife
Bk 11 Becker Necker Knife
Ka-Bar Becker Tac Tool - Bk 3 Becker Tac Tool