source: Disney Infinity
included textures in case anyone wants to paint her.
she'll need a base since her boots won't adhere sufficiently.
hair is a separate object from the rest of the body, but your slicing program should be able to do internal booleans w/o any issues.
removed eyelids. connected arms, legs, head to torso. cleaned up the hands a bit but they're still a bit messy. 3xSS should scale well enough but if you're going huge you'll have to use the final blend to apply subsurf modifier at 4xSS. added some superficial edge loops around bikini line to create a more pronounced border. simplified the mouth corners and a bunch of other stuff.
print at your own risk.
needs supports and rafts/base (already mentioned above).