Here is a picture of the top:
(Buckeye Beauty is also called Jacob's Ladder)
For the half square triangles, I marked a line diagonally from each corner. I sewed a scant 1/4" from each side of the line drawn. I then cut down each of the lines and down the middle. Here is a picture:
I used my 4 1/2" HST Bloc-Loc to square them up. (This is a gadget that I am using and enjoying!)
Here is how I made the 4 patch from the layer cake squares:
I marked a line down the middle of the square and then stitched a scant 1/4" on each side of the line. I stitched down each edge of the squares going in the same direction. I cut on the line in the middle, rotated the block 90 degrees and cut down the middle (5" in). I rotated the block back and cut 2 1/2" from the middle cut parallel to the stitching 1/4" in from the middle and on the edges. I pressed those open, laid them right sides together with the same colors opposite and seams nested, and sewed down the two edges again. I then cut 2 1/2" in from the edge.
To use up the other layer cake pieces, I decided to go with a keyboard border. I used leftover pieces in the backing.
There you have it, how to make a Buckeye Beauty baby quilt with a layer cake! A great time saver! The ending size is about 42" x 42". I did have about 5 pieces of the layer cake left. So glad that I bought fabric for backing and binding back when I got the layer cake!