Other Worlds is another installment in the Guys Read series edited by Jon Scieszka. While these books of short stories are marketed to boys, they are very enjoyable and would be appealing to girls as well. Many of the authors will be familiar to kids which helps to promote interest in the Short Story Genre.
The Real Boy by Anne Ursu
Shelf Life: Stories By the Book by Gary Paulson
The Boy on the Porch by Sharon Creech