I like this one, its hard to tell how small the center is on here but its on an 8x11 sheet of paper so, yeah.
(c)Nathan Stienstraw. 2000
I don't remember the first time I came up this this style but the technique is pretty simple if you see it happen from the beginning. I've made a bunch of these, including my favorite which was stolen off the walls of DHS in '01 along with another of mine right before a contest.