Microplasmas have an extensive selection of applications where they can be employed in the synthesis of nano/microparticles. Nano and microparticles are efficiently produced with currents in the mA range. Our flexible microplasma electrochemical synthesis method allows the freedom to create numerous metals, their corresponding oxides, and even metal alloys. Beyond the ability to produce numerous material combinations, this method permits the material’s morphology to be tailored to create an assortment of geometrical configurations. This freedom to produce a wide variety of materials and geometries is due to the coupling of a traditional electroplating process with microplasmas. Templates can also be incorporated to assist with altering the material’s geometry. Microplasmas are exceptionally flexible for material synthesis with the ability to be processed in atmospheric conditions. Inert gasses can also be used for plasma formation to reduce power and limit chemical reactions. Microplasmas are steered for production of either metal or metal oxides through tuning for injection of electrons to act as a reducing agent or for production of multiple oxygen radicals for use as an oxidizer. Traditionally, microplasma synthesis has been only used to produce noble metal nanoparticles, limiting its usefulness in applications beyond plasmonics. Our system is designed to work with aluminum, transition metals, rare earth metals, and alloy mixtures (e.g. invar and stainless steel). Geometry tailoring results in size-tunable spherical particles, metal nanowires with diameters in the nanometer range and micron lengths grown without templates, as well as 2D metal flakes. These materials can be used as feedstock in a variety of 3D printing methods – from selective powder deposition to the more traditional fused deposition modelling. Taking advantage of 3D printing techniques, application specific materials can be created with features such as gradient metal/metal oxide concentrations.