Pour casting concrete into rubber gloves, being carefully to remove air bubbles from fingers. Mould into position working fast before concrete sets. When set, peel of rubber gloves revealing your concrete planter.
~Garden statue~ I'm gonna admit that this is kinda creepy.but I think if it actually turned out that it would be sorta pretty. (Cut the back half of the doll's head off and fill the front piece with cement for a sculptured doll head for your garden.