Well, here they are, 576 half square triangles, arranged in 16 stacks of 36 triangles:
Sure doesn't look like that many, does it? Each of the sixteen stacks has different blue fabrics, so I can make 36 blocks with no two fabrics the same. Four stacks have 36 identical blue triangles all the way down, but different tans and creams and beiges... a couple of stacks have 18 different blues, and all the rest of the stacks have 3 different blue fabrics. I'm really looking forward to sewing the blocks now! I'm not into football, so that's what I'll do instead of watch the game.
Anyone want to come over to my house Sunday and iron all these before I start to sew?