Well, now those expectant parents can add a 3D model of their fetus right there with the pictures.
Japanese company Fasotec will make a miniature 3D replica of your fetus and hand it off to you in a lovely jewelry box, marketed as "The Shape of an Angel" for about $1250 (as of 2012). Yep.
Brazilian company will do this too, for about $200 for a full model of a fetus at 12 weeks, and about $300 for the face and arms of a fetus at 24 weeks. This company does bring up a pretty legitimate reason - allowing visually impaired expectant parents to "see" their fetuses in a way ultrasounds cannot. That's pretty cool.