I have the threaded mutant classic (from xxcycles, as mentioned above), and I love it. It is ridicu-long (140), and so fairly inappropriate for bullhorns or the like. But really great for flat/riser/drops/cruiser etc. I know some people dont find them aesthetically appealing, but I get compliments like crazy and firmly believe it's the best looking part of my bike right now... which, really, isn't that hard.
I have a tendency to dislike threadless stems, like that hideous salsa one, but the mutants in the OP and fgg pix actually don't look like ****. Plus, they come in colors. red! yellow! silver! other colors? And for that cheap, I just might get a few in case I ever go threadless.