Or do a few more folds to get an elongated shape. It looks very cool done in shiny foil.
Once you blow into it you get a fat box, called a "balloon". If you like to see things being folded, here's a video showing how to fold an origami balloon.
For younger hands, try folding an origami Christmas tree. It takes just a few simple folds of paper and then you can have fun decorating it any way you like. Here's how.
If you're looking for easy-to-make Christmas ornaments for youngsters, check out these ideas:
For those who want to explore more origami, we've got more than a dozen books on origami on our shelves, ranging from Easy Origami to Not-quite-so-easy all the way up to Sort-of-difficult Origami. There are two books full of things to fold for the holidays and - if you have an animal loving kid in your home - there's a book of Animal Origami.