My three-day weekend of origami concluded yesterday with some greens. Another "xyz" intersecting diamonds, and then a slight variation of the Sonobe unit I already learned. (This variant is really common and I feel like it should have a name, but I don’t know if there’s a consensus on what it’s called.)
This video shows how to make the unit and the 30-unit ball. On-screen text is in Spanish, but you get the idea.
















