Hi guys. Just hanging out here at CES, and I had the chance to meet with MakerBot CEO Jenny Lawton yesterday. She showed me four of the new filaments that MakerBot will be releasing this year (in conjunction with smart extruders capable of printing with them). Those new materials are Limestone, Maple, Iron, and Bronze. I had a chance to hold objects printed with these, and walked away rather impressed. Read and see more about these at: http://3dprint.com/35588/makerbot-composite-filaments/