Ok, for those interested -- I'm willing to share my design with you.
Block size is 18".
Each of the small blocks has a 2 1/2" sq center and 2 1/2" sqs on either side of center and then 2 sides that are 2 1/2" X 6 1/2". The block is 6 1/2" unfinished.
The larger blocks are 6 1/2" x 12 1/2" unfinished. Starts with 2 1/2" X 8 1/2" center,2 sides same size and then 2 ends are 2 1/2" X 6 1/2".
There are 30 blocks total, 5 across & 6 down.
Lawsonmugs -- even at 61 you could be going to college. I guess you'll have to make your own.