Well, I didn't want to buy new plastics, so I figured I'd try to fix my already trashed ones (couldn't make em worse!!) Required: Soldering iron BBQ Teflon sheet -from camping shop Step 1: Heat up soldering iron Step 2: Place Teflon over scratch Gently move soldering iron and Teflon back and forwards until scratch disappears ! It is a good fix for an ugly gash. It at least gets the WHITE from the scratch edges. Not perfect but the easiest method I've found. Works on light scratches too but you must keep the Teflon moving or it will heat up one spot too much and melt it too much. Hope this helps.