Figured I could throw them in here. I was bored so decided to take you up on the offer of making some of the achievement icons. Only did 4, and you may/may not like them. I don't really know the end vision of the original artist, nor do I have to original project files, so this may/may not work.
Head Hunter (sorry about the double post (per the other ranks, this should be the one with the extra horizontal "spikes" (also note the color similarities, I made this to be platinum colored but it's very similar to silver, colors are easy to cange)))
Lobotomist (this one I'm particularly unsure of - I tried to go for an auraxium feel to it but that also hides most of the crosshair - any material/color you want can be done instead though)
Care Bear Stare
I've got a present for you
I may do some more if this falls in line with what's acceptable.