A good way to protect the camera ring?

[TLRtheory]

I discovered today that the camera ring is very easily scratched. I don't even know how it happened but I'd like to protect it from getting any more cosmetic blemishes, any ideas?

 

[Chintan Gohel]

I discovered today that the camera ring is very easily scratched. I don't even know how it happened but I'd like to protect it from getting any more cosmetic blemishes, any ideas?

Back cover maybe? Or my brother's favourite fix it material, cellotape