Using my sewing scissors, I trimmed right above the leg binding all around the bottom of the onesie first, and then slightly eased the curve to be a bit less dramatic. I then just set my sewing machine to a wide zig-zag and pulled the cut edge taught while stitching to create a lettuce effect. Since it does not require turning under a hem the shirt is still plenty long enough for her. If summer ever arrives I think I will further refashion her onesies to be short sleeves. This refashion took about 5 minutes with Abi helping on each step. She knew they were her shirts and wanted to take part after all!