Anthony Herrera delivers again. This year, in addition to his excellent Star Wars snowflakes, he's got a series of snowflakes inspired by the movie Frozen: http://www.anthonyherreradesigns.com/index.php/8-ahd-blog/15-frozen-snowflakes
I figured I'd take a crack at converting the PDFs into STLs because I'm better at 3D printing than I am at folding and cutting paper. And I figured I'd start with Olaf because I know someone that lives at my house that will love him... :-D
Instructions to make one: Download and print.
What I did to create the model:
Download PDF from anthonyherreradesigns.com, open PDF in graphics program, remove the guides for folding, mirror the paths that make up Olaf, copy & rotate 5 times to make a complete snowflake, clean up paths, export as DXF, import DXF into OpenSCAD, linear extrude, add a loop so it can be hung up easily, export as STL.