Yeah, I'm a Disney freak, so you know I did that last year.
Anyway, here's a link to the directions I used: https://www.math.lsu.edu/~verrill/origami/sonobe/
its actually pretty simple, and If you do them with Christmasy paper, it looks pretty snazzy. Try it and see for yourself! I'd love to see what you come up with!
Here's a little one I made with about 12 pieces. Its smaller, and I like the big one better, but this one is still pretty cute.