A.R.S.E.

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Seems to be like a stainless steel type of deal.

There's a few cars about trying self-healing paint too.

Ah yes, I invented this years ago (ahem... in a script I wrote). All my spaceships were coated in a fabricated skin that could heal itself.

So although I have no idea how they did it, I shall take full credit.

Next step is engines based on a biological digestive system - you saw it here first.

And what did you call your magical device?