This Nikki Sixx skin is a mashup of many of Nikki Sixx's outfits, all together to make this custom Nikki Sixx skin of my own.

His left shoulder spike thing is now 3D, bearing more resemblance to the real thing.
As well as the shoulder spike, most of the torso is from his Shout At The Devil outfit.

He is wearing his striped Theatre Of Pain pants, or as I call them, his Beetlejuice pants.
He now has a blue head bandana, also seen on the Theatre Of Pain skin.

I also gave him a checkered belt and some black converse shoes not seen on the other outfits.
In addition to new stuff on the skin, I defined the belt thing that's on his torso so you can see it better.
I put another shadow on the skin to make it look more HD.