~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.
Make cement cloth planters. Approximately a water/cement ratio. Add drainage holes in the planter before it completely hardens to prevent cracking. You may also want to apply a couple coats of cement sealer after the planter is dry.