This is very quick attempt at the bottle, ignore the sloppiness. I grabbed a side view of a bottle and brought that in as an image plane and drew a profile curve. I put that curve into a Lathe Nurbs for the main part of the bottle. For the bottom part, I used a cylinder, grabbed faces on the bottom of it and extruded those selected faces down. That polygon was then placed into a Hyper Nurbs to create the roundness. Hope this helps.