Well, you do fondle your iPhone like it's a pet, so why not give it a tail already? Behold "Mobile Tail" by Korean designers Jangwon Park and Sangwoo Park, which won an award at the Tokyo Designers Week 2011:
As Jangwon puts it, in today's busy society, we have constantly have our phones by our side—whatever happened to spending time with pets? The concept behind Mobile Tail is to give our phones a personality, to add a tail to both personalize, and give a sense of heart to our "constant companion."