You saw it first in Houston at the Iron Quilter Challenge. You asked for a workshop and pattern. Here it is. In the workshop you will get the full design capability of this pattern. Buying just the pattern, well, it's all on you but I know you can do it. No special tools needed.
Supply List: Cut (1) 12-1/2” x 12-1/2” square from each (16) fabrics. Cut (1) 10” x 10” square for each (16) fabrics. (2) 1/4 yard sashing fabrics, assorted solids or semi-solids. Plus extra fabric for optional border.