  A nested polyhedra model has been developed for magnetohydrodynamic (MHD)
turbulence. Driving only the velocity field at large scales with random,
divergence free forcing results in a clear, stationary $k^{-5/3}$ spectrum for
both kinetic and magnetic energies. Since the model naturaly effaces disparate
scale interactions, does not have a guide field and avoids injecting any sign
of helicity by random forcing, the resulting three dimensional k-spectrum is
statistically isotropic. The strengths and weaknesses of the model are
demonstrated by considering large or small magnetic Prandtl numbers. It was
also observed that the time scale for the equipartition offset with those of
the smallest scales shows a $k^{-1/2}$ scaling.
