My 4 yr old wanted to be Luke Skywalker on a Tauntaun for Halloween. I spent a few hours in Zbrush on the head sculpt, printed it out on a super low infill setting (1% iirc) to keep the weight down and medium quality.
Spent many many more hours on the rest of the costume with upholstery foam, fur and lots of painful burns with a hot glue gun.
Zbrush Tauntaun head:

Luke's radio headset:

Head print:

Finished costume:

And a little video I made of him goofing around in it:
https://www.youtube.com/watch?v=pQCECSasHXA