Necron group
I found these posted on the Frothers Unite forum. I think they're brilliant little chaps, full of character and a lot of fun whilst still being a little...menacing.
They were made by Alessandro Conti.

Alessandro's explanation of how he achieved his rust effect
"I'm honoured that you enjoyed my rust!
Black priming.
Get a brown-red Vallejo (don't know what code, but from the military range)
Mix it with flour (is this the right English name of the powder you make bread with?) in a 50-50 mix.
Then drybrush the whole model with this ugly mud, and you get the surface scabby and irregular.
Add red-orange to the mud and keep on drybrushing.
Then paint small outlines in orange and overpaint those orange bits with metallic paint, ensuring that every metal spot has some kind of orange outline, to give the rust-falling-apart feeling.
And you're done!
It takes me some five minutes per model, no more, really."

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Scarecrow pattern warrior:

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Destroyer:

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Necron Immortal:

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Wraith:

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Necron Lord:

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Scarab swarm:

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Duck pattern warrior:

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