On Wish Trees

Our town has a wish tree every October. I was very excited to visit it and hang some wishes upon it on a grey and rainy day. There's a great book I read to my class:  Wish Tree by Katherine Applegate and I've always wanted to do a wish tree at our school where passers-by and students could hang wishes to dangle in the wind. I haven't made it enough of a priority, I feel I need permission from someone somewhere. But the book is one of tolerance and kindness and stands for goodness and in the name of that book alone, I have reason, especially in a district that I'm proud to say, stands for all people. What wish would you hang on a wish tree?