Worlds Next Door, edited by Tehani Wessely.
I've just finished reading Worlds Next Door, which is consistently at a high level. The stories are by established Australian writers, including Paul Collins, Rowena Cory Daniels, and Dave Luckett. Aimed at younger readers (upper primary school, or maybe early high school), it nonetheless provides much to amuse adults. If you have a kid in your life aged, say, 9 to 12, s/he might well have fun with this book ... but dip into it yourself before you pass it on!