Pet cloning is a pretty controversial practice, requiring $50,000 - $150,000, dozens of dogs living in questionable laboratory care, and—some say—the naiveté of heartbroken pet owners missing their loved ones. But it's an amazing feat of science and, hey, isn't it impressive that there have been enough pet clones that we can even have a "best of" list? Plenty have chosen to to fork over the funds and gotten little facsimiles of their faithful companions; here are some of our favorites.

For more clone action, watch Orphan Black, the new sci-fi clone thriller, premiering March 30th at 9/8c as part of Supernatural Saturday on BBC America!