  We examine the shape of droplets atop deformable thin elastomeric films
prepared with an anisotropic tension. As the droplets generate a deformation in
the taut film through capillary forces, they assume a shape that is elongated
along the high tension direction. By measuring the contact line profile, the
tension in the membrane can be completely determined. Minimal theoretical
arguments lead to predictions for the droplet shape and membrane deformation
that are in excellent agreement with the data. On the whole, the results
demonstrate that droplets can be used as probes to map out the stress field in
a membrane.
