Oh yeah......

And a couple of times, we used a slightly porous paper and glued it instead of taping. And then painted it with fuelproof dope. It then became basically a new, perfectly adequate retrofit to the original (which was hidden inside).

The kind of paper used in rifle/pistol targets works great for that. I've used it recently and painted it with surfacing resin. It cures out with more strength than most would think. And is more than light enough. However, anytime you increase the size of a control surface you have to consider flutter. Make doubly sure your connections are slop free and the servo is strong enough.