To qoute the great Sheldon Cooper:
"Engineering: where the noble, semi-skilled laborers execute the vision of those who think and dream. Hello, Oompa Loompas of science!"
Hey, how about we get together and develop that stone bicycle for Nightshade? We could make it out of flint. Think of how aerodynamic we could make it with those single atomic layer leading edges. Or we could make it out of hematite since he's such a fan of iron.
Or we could make it out of bauxite...oh, wait. He hates aluminum