Keyboard Protector

I purchased an MA-16250 a few weeks ago. After searching for several hours, I was very surprised to find that silicone keyboard protectors are not available anywhere, including Dell. Thinking it's likely that another Dell design had the same keyboard, I called Dell. They told me that not only is this a new design, but unique, with no other keyboard like it. Further, they said Dell makes one, but it's out of stock and he didn't have a part number.

I know there are flat silicone sheets, but I'm looking for one that forms to the keys on the keyboard. Has anyone found one?