I did these short very rough animations for fun. I didn't plan out the action ahead of time. I just animated them straight through, tweaking as I went. My goal was just to play around with the medium.
Climbing over a wall
Jumping Rope - This one is my favorite
Doing Flips - This one was slightly more planned out. Next time I do something more complicated like this one, I will plan it out more. I ended up redoing almost the entire thing after my original idea didn't look right. It still doesn't look quite right, but I am new at this.