Check out the alphabattle site – there is a lot of creativity going on there. In particular, the letter H – everyone seemed to pull out the stops on that one. I've been meaning to get into the game, and finally got to pull one together for the letter K, shown here (but also on the K page).
For people interested, you should see the submissions info. You can even put up past letters.
I have an idea in mind for L, which, if executed, will be in a completely different style. Fortunately, I'm not trying to construct a whole alphabet. On the other hand, though, it might be fun to have a whole karate set of letters.