This is a multicolored case for the OpenWorkbench LogigSniffer board.
It was printed on my Rapman with colored PLA. The color changes where done with exchanging the filament midprint, which works fine if you are able to pause your print.
You can read more about this on http://www.ifeelbeta.de
Print the top and bottom parts, insert LogicSniffer Board and close top. Have fun.