  Laughlin's construction of exact gossamer ground states is applied to normal
metals. We show that for each variational parameter 0<=g<=1, the paramagnetic
or ferromagnetic Gutzwiller wave function is the exact ground state of an
extended Hubbard model with correlated hopping, with arbitrary particle
density, non-interacting dispersion, and lattice dimensionality. The
susceptibility and magnetization curves are obtained, showing that the Pauli
susceptibility is enhanced by correlations. The elementary quasiparticle
excitations are gapless, except for a half-filled band at g=0, where a Mott
transition from metal to insulator occurs.
