They looked like the characters from Jeff Smith's all-ages award winning Bone comic book series!
Have Fone Bone, Smiley Bone and Phoncible P. Bone moved over from Boneville and now call Melbourne "home"? You be the judge!
Could this be one of the Bone cousins (sans arms and legs)?
A photo op with one of the Bones!
The structure looks like Fone Bone in particular, as the picture below shows:
Pretty cool, eh? An eerie resemblence!
I love Jeff Smith's Bone. Aeris got me the phonebook-size softcover omnibus that had all 60 issues of the series, but I fell in love with the story and the characters so much that I went and got the hardcover colour editions as well! In fact, I just recently got the ninth and final colour HC volume to finish off my collection! It's a brilliant series and well worth collecting.
I highly recommend Bone, which can be enjoyed be people of all ages!