Psst. Want to know a little secret? When it comes to beginner origami, if you know how to fold a crane then you can fold a variety of other animals/creatures, including a frog. By adding one extra step, you'll be able to turn a crane into a cute frog that stands on its own.
Watch this tutorial to get the steps for folding the origami frog. The tutorial is recommended for origami beginners, so you can complete the project even if you've never folded a crane or lucky star in your life.