I recently quilted an Octagon Shimmer quilt for a local client. This pattern is designed by Jennifer Sampou. I emphasized the octagon shapes by randomly quilting designs in a radiating octagon. I used a Mark B Gone pen to draw boundary lines and then quilted in between with varying designs. I would suggest using a size 19 needle when quilting heavily metallic fabrics. It helped stop my thread breakage.
I used Quilter’s Dream cotton batting and Superior Threads Omni on top and So Fine in the bobbin.
The quilting stands out beautifully on the back of the quilt.
Thanks for looking!