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 s well clean them up and post them!
There's 12 different icons here, each in 4 different weights and at 3 sizes.
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 :)