  We present a scenario for the production of dynamically cold rings around the
Milky Way via a high-eccentricity, flyby encounter. These initial conditions
are more cosmologically motivated than those considered in previous works. We
find that the encounters we examine generically produce a series of nearly
dynamically cold ring-like features on low-eccentricity orbits that persist
over timescales of ~2-4 Gyr via the tidal response of the primary galaxy to the
close passage of the satellite. Moreover, they are both qualitatively and
quantitatively similar to the distribution, kinematics, and stellar population
of the Monoceros ring. Therefore, we find that a high eccentricity flyby by a
satellite galaxy represents a cosmologically appealing scenario for forming
kinematically distinct ring-like features around the Milky Way.
