The materials info page says that full-color sandstone can produce "photorealistic" parts - is that really true?!?! For instance, is the attached photo possible without painting? I'd think that if it was, ShapeWays would show a whole bunch of incredible examples. There's only one example, the "Sad Man" figure, that is fully and realistically colored, but I'm really not clear on whether it was painted or came out of the printer like that. This is the #1 problem with printing scanned objects - they generally look like blobs unless you take a lot of time to paint them.