Nothing mind blowing, just some sticks of aluminum to swap in my bench vise. I find I use 2 pieces of L angle aluminum pretty often so I don't mar work & they are perpetually slidng out of position or falling on the floor. So thought I'd make some jaws. I should have removed the stock steel ones first to look at the layout more carefully. The casting has ledge, the blind holes are very shallow. The flathead screws are Philips which is a wonderful choice if you have a 1.5" long screwdriver. I replaced them with hex bolts. I might make some smooth faced mild steel ones one day, or maybe with some features like Vee notches. Anyways was a good warm-up.