  A primary production mechanism for blue stragglers in globular clusters is
thought to be collisionally-induced mergers, perhaps mediated by dynamical
encounters involving binary stars. We model the formation and evolution of such
blue stragglers, and produce theoretical distributions of them in the
colour-magnitude diagram. We use a crude representation of cluster dynamics and
detailed binary-single star encounter simulations to produce cross sections and
rates for a variety of collisions. The results of the collisions are determined
based on SPH simulations of realistic star models. The evolution of the
collision products are then followed in detail.
  We use our results to explore the effects of a variety of input assumptions
on the number and kind of blue stragglers created by collisions. In particular,
we describe the changes in the blue straggler distribution that result from
using realistic collision products rather than the ``fully-mixed'' assumption,
and from changes in assumptions about the number and orbital period
distribution of the primordial binary population. We then apply our models to
existing data from the core of M3, where the large blue straggler population is
thought to be dominated by collision products. We find that we have difficulty
successfully modeling the observed blue stragglers under a single consistent
set of assumptions. However, if 3 particularly bright blue stragglers are
considered to be part of a different observed population, the remainder can be
successfully modeled using realistic encounter products and assuming a 20%
binary fraction with plausible period distribution.
