I don't think I've ever seen a photo of one, but this sample image shows what they look like (minus signature, date and fingerprint).
https://wiki.coin.community/File:Casascius_-_paper_wallet_sample-1.jpgThe fact that the private keys are visible means there are probably very few images of them, but if someone is willing to post one that would be awesome.
I’m wanting to say I was told that is not what they look like. I also think I know of one person who told me they own one but didn’t want to bug them. But I forgot about the thread krogo posted..this seems a difficult find, so I bugged the person lol. Will provide update.