I've had two different ones saved for a while now, so I guess I'll show them. The first one isn't very good, but I like the second one a lot.
[*SNIP* Just realized I had already posted this one.]
This is some sort of alien pistol. I'd just watched District 9 again when I made this. It would look a lot better with the blades and sight taken off, but I'm not going to try to recreate it.
A sniper rifle.