I had the same question about the sword, and the base of the grey survivor.
Some of these hard plastics retain a "memory" after casting that leads to warpage like this, that cannot always be corrected by the hot water/cold water procedure.
Is it just me or is there an extra Walker figure in there?
I thought we were only getting 2 of each sex.
Wondering if I'm going to do some sort of color-coding for types of zombies. I don't want to limit myself to asking everyone look the same, but I might code by skin color, or bases... Any ideas?
I like your edge idea. I was planning on following the official colors for survivors, so recognition shouldn't be much of an issue, but zombies will probably get a blue edge for runners and a green edge for fatties, and so on - I do not want to get into the "Can't you see he's obviously running? No, that one is just bent plastic!" argument. Walkers will get either gray or black - I need to keep a color for turned survivors.
Edit: Check updates around #40 or so on KS. They have one about plastic - they said not the GW stuff.
I take it you've never tried leaving a base unpainted, then. The reason black/Tarmac bases work is that you can wipe or paint over easily to cover up any mistake. Even a grass/rock base will hide some mishaps throughout the texture. But a uniform yellow plastic will show any little mistake. It's not impossible, but it's probably easier to mix a matching tint and painting the edge with that.
Edit: Not to mention it makes priming a lot harder, stops you from using any type of spray paint, and as a co-Zombicide's just remarked, the paint/plastic contrast is quite ugly.