All Recently new to Shapeways myself but an avid blender user I thought some may find this useful. Blender can export .x3d/.vrml for those wanting to utilise FCS but there is a trick. If you are using any of the newer version of blender that come with cycles, make sure you have blender set to Blender Internal before you export - otherwise any textures you have on your model will not be included in the resulting .x3d export file. I use Blender 2.63 and have had no problem successfully exporting .x3d with textures that shapeways accepts fine. The only thing I have noticed is that the exported model appears to be x10 scaled (in my case) and I get a message on upload that it was too big and shapways has rescaled to the mm scale (which is what I selected) and then it is fine and the size I created it at. Hope this helps all you blender users in some way.