When I first started making geek wedding cake toppers, the very first requests that I had were to create zombies and survivors to fight them. Since then, I've done quite a lot of very different zombie apocalypse wedding cake toppers. I'm always interested to see what sort of weapons the bride and groom choose.
The shotgun is a classic anti zombie weapon. At close range, it can easily shred a zombie, and a head shot is likely to obliterate said head.
The drawback is the noise- your boomstick will be attracting zombies from blocks away every time you use it. Which is where the machete comes into play. While close combat is clearly riskier than firearms, it does allow you to get a clean kill without alerting every zombie in the neighborhood.
His and Hers M4 Assault rifles. This assault rifle is quite a fantastic weapon for battling zombies. It is a very accurate assault rifle. Its ideal range is just about perfect for battles with zombies, and the accuracy is a dream- perfect for scoring that headshot.
But don't use it on automatic- while it might pulverize one or two zombies, you'll also be out of precious ammunition before you know it.
This last couple are going for a full stealth mode. The bow has a lot of advantages- aside from being much quieter than a firearm, it also has the advantage that you can retrieve your arrows. You can even make new arrows with far less expertise and equipment than it takes to produce new bullets for your gun.
And while we've already discussed the merits of the machete, it is worth noting that this bride came prepared with a side arm- to use if she ends up in a close quarters that make her bow unwieldy.