Decal Girl Windows Laptop Skin - $19.99
Laptop skins offer the best scratch protection. Sharp objects will scratch the skin instead of your Surface Laptop’s magnesium body. Plus, you can use them to add a little personality to your device. No major skin makers have Surface Laptops skins. However, Decal Girl sells hundreds of generic skins that could work for you.
You could cut down one of the company’s $19.99 15-inch Windows laptop skins to fit the Surface Laptop. The site’s custom size tool will send you a skin that's the exact length and width you need for $24.99.