Definitely a smorgasboard of tricks this week. The first is a repeating triangle pattern done that is repeated at 90 degree angles to reveal what looks to me like a pinwheel, though the trick takes so long to render the idea may be irrelevant for performance. I tried it this past weekend and got a good response, though. I don't know what to call the next trick--I think it ultimately breaks down to halving the triquetra in split-time horizontally. Most of us know the vertical variation, but the horizontal one requires some arm-crossing action.