Help-An O.H. Short for Young Kids?

Greetings! I recently sponsored a Great Books Club for 4th through 6th graders and would love to have them read an O Henry short story that is appropriate for their age, especially one that features a child so they could better relate. I'd prefer saving the great Gift of the Magi for Xmas time. Can someone who really knows their stuff suggest a good one? (I did thumb through an anthology of his works, but didn't find one yet myself.) Thank you very much! :hurray: