  All known Galactic Of?p stars have been shown to host strong, organized,
magnetic fields. Recently, five Of?p stars have been discovered in the
Magellanic Clouds. They posses photometric \citep{Naze} and spectroscopic
\citep{Walborn} variability compatible with the Oblique Rotator Model (ORM).
However, their magnetic fields have yet to be directly detected. We have
developed an algorithm allowing for the synthesis of photometric observables
based on the Analytic Dynamical Magnetosphere (ADM) model of \citet{Owocki}. We
apply our model to OGLE photometry in order to constrain their magnetic
geometries and surface dipole strengths. We predict that the field strengths
for some of these candidate extra-Galactic magnetic stars may be within the
detection limits of the FORS2 instrument.
