What picture should I use?

I bought a really tacky 5x7 picture frame for a friend's wedding present. I am trying to find a picture to put in it. I am going to put a card on this gift that has a name on it that he won't recognize, so he won't know who the gift came from. On the back side of the picture itself I am going to leave a note and probably a check in there. We have some other gifts we are getting them that will be marked from us as well.

I want to try and find a kinda serious, but WTF picture. Anybody got anything good that is kinda obscure that he wouldn't recognize as a meme and that someone like Walgreens will actually print?