$799 Palette+ lets you mix 3D printing materials on a single-extruder 3D printer

Mosaic Manufacturing, a 3D printing specialist based in Toronto, Canada, has today introduced Palette+, a 3D printing device that enables multi-material printing in single-extruder FDM 3D printers. Palette+ is an upgraded version of Palette, Mosaic’s flagship product. 3D printers with multiple extruders are becoming increasingly common these days, as more and more makers look to benefit from the many advantages of multi-material printing: printing soluble support structures, printing multicolor objects, and printing structures with both flexible and rigid areas (to name just a few).

from 3ders.org - http://www.3ders.org