Beyond the originals by Angus MacLane, my favorite CubeDude so far is this lovely Princess Leia as Jabba’s slave girl by Larry Lars.
I love the fact that Larry’s Leia is less, uh, cubical than most other CubeDudes. Beyond juvenile references to CubeDude anatomy, Larry has incorporated some really interesting techniques, including LEGO coins as earrings. Larry explains:
The coins are squeezed in between the head and the 1×1 round plates connected to the underside of headlight bricks. Since there is an edge on the coins they stay there.