I found an old .psd of some icons I was experimenting with varying the weights of the lines at varying Android densities and figured I may as well clean them up and post them up for people to use.

 

There's 12 different icons here, each in 4 different weights and at 3 sizes. All pixel perfected and adapted to the corresponding sizes to snap exactly to the pixel lines.

 

They follow the Android rules of asset/focal frame and, as an example, at xxhdpi they are set at 4px, 6px, 8px & 10px lines.

 

Hope somebody gets some use out of them!