I have some repro depression fabric squares that I just love, and I'd like to make some mini Amish baskets with them. Since the squares are only 5", they'll have to be scrappy (basket one fabric, handles another). I'd love for them to end up 5" when I'm done, so I can alternate them with solid charm squares. But I have no idea how to figure out what size to make the half-square triangles, or what size squares to start with! Can anybody help?