Seeing the green Zombie marketing boxes makes me think I should sell ammo (packaged and marked up for it's specialized purpose, of course) for shooting at particular TYPES of Zombies...:
The Walking Dead
Fear The Walking Dead
Dawn of the Dead
Night of the Living Dead
Shawn of the Dead
Zombieland
Day of the Dead
Return of the Living Dead
The Serpent and the Rainbow*
Resident Evil
I Am Legend
House of the Dead
World War Z
(By no means an exhaustive list, I realize...* Don't let them bury me...I'm not dead.)
I can hear the gun shop patrons now.
"Do you have .223 in World War Z? No? Only in Shawn of the Dead? Hmmm, nooo...I need to stock up for insect-like fast zombies. I'm pretty well stocked for slow, British Zombies."