After much deliberation and consultation with a friend, I chose Simplicity 5383 from the '80's. I love the full maxi length, the square neck line, the gathered inset, shoulder ties and side seam pockets. I felt it was a perfect pattern to showcase this lovely fabric.
Rayon challis can be a challenge to work with because of its silkiness. I find it best to cut the fabric with my pattern weights, a rotary mat and cutter with a very sharp blade. These tools help me move quickly across the fabric preventing shifting as I go.