I was searching thru this Google search:
https://www.google.com/search?q=12%2...ih=606#imgrc=_
I know you like traditional blocks. Have you made these:
Bear Track (has 12" block)
http://www.generations-quilt-pattern...ilt-block.html
Broken Dish block. Jan could help you with the dimensions
http://www.quiltmaker.com/articles/Grandpa_s_Star
Scrap buster 36 2" finished square block sashed:
http://blog.patsloan.com/2014/01/pat...ing-quilt.html