Bullet Rings Origami Tessellation
I'm still obsessed with variations on 'encapsulated' triangles. This pattern is interesting in that it contains a shape that is partially rhombic, yet rectangular on its other end. This results in a pattern where some of the triangles are dominant and others are submissive. It's just an interesting set of shapes that naturally coalesce on the grid. It's an intermediate difficulty fold on medium grade paper. Crease pattern is fairly obvious, but I have included it below. Reverse side does require a little finesse to make it work. It fits perfectly on a 32 pleat grid.