Simple zombie mod?
Maybe a melonhead model and random chances of 1-3, custom move called Push only for zombies and you push them 3 spaces back with a chance of them falling, and they just get up. Sounds a little OP but when you have 3 on you at once and a chance for infection that equals Blue Rot maybe, it would be nice to push them back and deal with others. Blade weapons give a move that you can try and execute with a jab to the eye. Anyone that could do this, would be epic.
5 Dollars for water!?