UPDATE 2017-01-09: I received permission by the original designer Tanya Wiesner or piraxchild on Thingiverse to up this here (again). All credit for the design goes to her. If you would like to show your appreciation, I suggest tipping her as I did! More of her awesome portfolio including a bust of Elsa (you know you need that one, too!) can be found on MyMiniFactory. The original Anna bust is here.
This is a Remix of "Frozen Anna logo bust" by kubus66, which in turn is a Remix of Thing 753115, which has been taken down. I only removed the "Frozen" logo and improved printability, so in a funny turn of events it's pretty much back in the original state.
The main reason for this Remix was that I couldn't get the source model to slice properly in Simplify3D; it had voids and internal solid layers all over. In my experience, this happens sometimes with models that consist of many overlapping surfaces like the source. Usually there's a simple fix within S3D - Separate Connecting Surfaces, activate Heal/Merge in the Advanced tab. But this didn't work here, so I opened it in Meshmixer and made it a solid. And there you go, slices like a cake.
marekhanzal probably went a similar way with http://www.thingiverse.com/thing:1666819, but she somehow aquired other defects and a nosejob along the way, so I thought I'd upload my version, if only for the S3D users out there (and the people who don't want the logo pedestal).
Have fun printing and make some kids happy! :)
PETG solid orange by 3DPSP
4:12 h @ 40 mm/s