If you would like something similar to what you've seen in my shop, I would be honored to make a custom item for you. Price will reflect the materials needed and the time required to make something special. I would expect custom slings to be done within a week of receiving materials.
Just let me know what color combinations you would like, or better yet, send me a link to the fabric of your dreams, and assuming it will make a good, safe sling, I'll list your custom order.