Yes, I'm probably a real noob, but Blender has a HIGH learning threshold! I've tried to find a way to extrude things, but I just can't seem to make anything work! I think it would be great if there were a few tutorials on how to do this in Blender (and also in other 3D applications). The one on the site is too simple. Scaling the object down and using booleans can be VERY dangerous since scaling is not the same as "shrinking" from the surface. One could end up with unwanted holes, etc. So, any skilled wonderful person who could present a nice little how-to list?