Abstract : The main objective of this work is to take traditional high-power, low frequency transducers and miniaturize them to expand the operating range, reduce fabrication costs, and improve performance. This effort began with the development of the "cymbal" and "moonie" miniature flex-tensional transducers. This project improved upon the cymbal design, explored modifications and developed new designs based on other low-frequency technology, such as the hollow sphere and more complex flex-tensionals miniaturized through extrusion and Fused Deposition of Ceramics (FDC) technology. Transducer development has been supported heavily by finite element analysis. Applications for cymbals, cymbal modifications, BB miniature hollow spheres, and monolithic multimode transducers has been explored. Emphasis is placed on Navy needs and biomedical applications.