A low-cost wax-cast molding technique for structuring ultrasoft (Young's modulus 40 kPa), agglutinative magnetorheological elastomer (MRE) material is presented. MRE structures ranging from a few millimeters down to the micrometer range with highly reproducible results are possible. Semitransparent MREs are also fabricated and their surfaces modified accordingly. This method opens new possibilities for MREs in biomedical engineering and microfluidic applications. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013