A longarmer can quilt anything you can put on the frame. Well, not husbands. Doesn't always look the greatest. I did a 2 sided poly fleece quilt for a lady. She loved it, it wasn't bad the design showed up beautifully. She has it on her bed and it looks great. Faux silk you would use a fine needle and wool or silk batting and a comparable material on the back. Due to fraying, I would keep the design faurly simple and larger blocks and lots of no-fray.