I like it, and will print it out. I want one for Dvorak, though…
Maybe I'll make one. Wouldn't be too hard.
I did, indeed, make one.
First I ported it directly: a clone of the QWERTY version, simply ported to PostScript. Then I added a grayscale version. Then I added the Dvorak layout. Each (or both) of these can be selected using a variable(s) near the top of the PostScript file.
The font sizes are not exact — the placement in the original varied from one key to another (symptom of using a GUI to place them rather than typing in the numbers directly, I think). My version uses the same font size for nearly all the keys, with some fudge factors to reposition large characters. Only the fudged keys (10 of them) have a different size.