Zombie Blood Shower Gel
Mmmmm... zombie blood! Comes in a resealable transfusion type bag with a loop you can hang on a shower head or something similar.
Actually it smells quite nice and will leave people wanting to sniff you more closely.
As most of us know, one way to get zombies to ignore you is to cover yourself in their guts, an extremely smelly proposition. Well, these zombie innards have been scented to be pleasing to the nose of humans as well as still make zombies believe you're one of them.
Be careful though, as a bit of rain will wash away the zombie guts and the horde will be upon you in mere seconds!