Junkyard Thread (Chyeah!, they're for sale!): http://www.therpf.com/f13/majoras-ma...5/#post2217457
I just finished my Majora's Mask after over three months of working toward making a prototype with as-authentic-as-possible features. I published an Instructable (04/14/12) as a guide if anyone is interested in following some of my methods to take his or her own!
Here you go:
The Legend of Zelda: Majora's Mask Replica
I'll attach a few pictures for you all to take a look at. The gist of the project was that it was sculpted from wood, cast in resin in a plaster mold, cleaned up and detailed, and molded in silicon (cast in resin). Take a look at some pictures and let me know what you think. Feel free to criticize! Send me an message if you have any questions.