The Tango chess icons have been done for a few days. I just need to find the will to go through the arduous process of exporting 6 pieces x 4 sizes x 2 colors = 48 of them. Plus making the 48 individual SVG files. That's more than I realized... ugh. I think when I get around to it, there will be a single chess icons bundle.
The Tango skulls have turned out to be pretty popular. I'm wondering if I should make a skull & crossbones set, or a zombie set, or something else that incorporates them or a derivative... pirate flags? Gimme ideas.
The chess icons got shelved a couple weeks ago due to other stuff going on. I did make good progress: the pawn, rook, and knight are finished, in black and white.
I'm going to embark on a larger Tango icon project: a complete set of chess piece icons. King, queen, bishop, knight, rook, pawn, in black and white, at 16, 22, 32, and 48 pixel sizes.
A couple of Google searches seem to indicate no one has done this yet.