Parts. A fair amount of Mixel Joints -- including the Pin Tow Ball one which I don't have enough of -- a 2x2 Round Tile w/Hole, a 2x2 Radar Dish, Skeleton Arms, Tooth Tiles, Minifig Handlebar, 1x2 Mod. Plate w/Bar (open ends), 3x3 Radar Dish, 1x2 Technic Bricks, Plates, Slopes, a couple
of Technic connectors, and a Minifig Scimitar.
Build. I went with a HtH Soldier variant (2Rh/1B/1G/1Y/2W).
Can you build something -- a frame, station, or starship -- right away? Yes. (+5)
Is it below, at, or above the golden ratio? Below. (+5) (The Golden Ratio is $0.10 per part.)
If you can't build a frame right away, or choose not to, does it have parts you should be able to put into use right away? Yes. (+5)
Does it have more than a handful of immediately useful parts? No. (-5)
Score: +10 (A-). So close. Eight more pieces and this would have had the top score.