3 Hours Speed Sculpts done each Monday night (now moved to Thursdays). Every week a new theme is chosen and we have 3 hours to sculpt a character or scene related to the topic using ONLY what comes standard with Pixologic's ZBrush. These are a lot of fun to do, its a wonderful challenge to see how much can be pushed out under a very narrow time constraint. Every sculpt-off sharpens my skills and creative decision making process.