  The analogy between black hole radiation and accelerating mirror radiation
(the dynamical Casimir effect) is particularly strong for mirror trajectories
giving rise to a constant thermal flux of particles. We present new ways to
achieve such thermal plateaus, and customize their finite, semi-infinite, and
eternal presence, corresponding to forming/collapsing,
complete-evaporation/remnants, and eternal black holes. We find simple
expressions for the energy flux in terms of the mirror rapidity as a function
of proper time and null time.
