I have not personally had these pets, but we were at the local country/feed store about 2 years back and there was a man there with a pet opposum. I have a pic on my computer, will come back to post it...on my phone now. And there is a teenage boy where my DS and I do Taekwondo, and he has a de-scented skunk. I snapped a pic of them too. I think it's also on my computer.
Those are the strangest I've come across...and I would never want to own either of them.