In this talk we present a model for the fabrication of thin glass fibers. Such fibers are created by heating and stretching a solid glass`preform'. This process is unpredictable because the preform undergoes undesired deformations due to surface-tension effects. For this reason, we present a framework for understanding how to fabricate fiber structures with complex tube-like geometries. Specifically, we look at how we can fabricate tubes containing: corners, non-uniform thickness profiles, and multiple holes. Speaker(s): Christiana Mavroyiakoumou (University of Michigan)