Modern Sampler by Leisel Rautenbach
You have 12 blocks. You could arrange them in asymmetric fashion.
Split Personality pieced by Audrie Bidwell
Thomas Knauer's design is always inspirational.
Jen Kingwell's Gypsy Wife
Quilts found on the web:
An interesting use of the negative space in a design.
Or you could go back on the grid.