I remember - write the words "I remember" and then see what comes next.
Lost / Found - write about being lost, or being found, losing or finding something. Remember a loss doesn't have to be negative, and a find doesn't have to be positive.
If I could cast a spell - you've been granted the power to cast exactly one spell. What will you choose to do and why?
I am like - this is a great one to do with children. Take five minutes to choose an object from somewhere in the house. Now, spend five minutes finding as many ways as possible that you're like that object. The stranger the connection, the better!
Seven Days, Seven Lines - write one line each about either the last seven days, or about seven important days in your life.