I did some shots of my daughter and she was playing with some log of wood. They were in a small box. And she turned the box upside down and some logs fall. That way, there are some logs sharp and other has some motion blur.
After a day full of joy and fun I took a picture of my daughter on a trampoline. She was only hanging around but all the other kids jumping, it looks like she is having a sleep while she is flying around.