Cut out a circle and glue it onto a sturdy piece of paper, like cardstock. Have the child write negative feelings, experiences, and so forth inside the circle.
On the outside of the circle, have the child write positive feelings, experiences, and so forth.
Then have the child "catch" all of the negative things inside the circle with twine, yarn, or another string-like material.
Lastly, have the child decorate their dream catcher!
I have had a lot of fun with this one with all ages. You can change it up by using different or additional materials and allow the child to be even more creative with it.