I made square-on-point quilt blocks using Accuquilt dies for a square and triangle. This was for a square-on-ppint block with 4 triangles in the corners. Made it really easy to piece because the triangles have the dog ears already trimmed for you. I would have to double-check, but I think the dies I used were the 4-3/4" square-on-point and the 4-1/2" half-square triangles. Here is a sample photo of the block, but my blocks are made of batiks and will be sashed in black:
http://sewquickly.com/quick-cut-squa...t-quilt-block/
And here are links to the Accuquilt dies I think I used:
http://www.accuquilt.com/shop/go-square-4-3-4.html
http://www.accuquilt.com/shop/go-hal...ed-square.html