I used to have a website bookmarked (but no longer, was on old computer) that let me design custom hand tools. You'd choose a handle, shaft material and length, and the bit material and type/size, then they'd manufacture them for you.
So you could order a custom rubber coated handle, 7 1/8" shaft, with a diamond coated titanium 1/4" security hex driver bit.
Anyone know of a website that does that? The one I had bookmarked had everything.