3D Paper Snowflake
WikiHow has an awesome tutorial on making 3D snowflakes out of paper. They're super easy and so pretty! Kasey and I tried our hand at making one last night and it turned out so neat, if I do say so. Ours is huge compared to the one in the pictures from the Wiki site but we used regular 8.5" x 11" copy paper. Because of that paper, it's also kind of flimsy but this was just a test and we're going to make more using a stiffer paper. We're also going to make smaller ones and ones from colored paper.
Instructions from wikihow are here. Let me know how yours turns out.