This section has really been cut down. I used to clip out anything that had anything to do with Star Trek or the Hitchhiker's Guide to the Galaxy (and the occasional Star Wars) in the comics section of the news paper. Why? I'm a very sick, sick person.
Anyway, the top image is from a crossword puzzle. "42 [across] Towel word"... what are the odds? That had to have been done on purpose. (the answer was "terry")
The pig head is just a little piece of dried fish-cake from instant ramen.
The glow-in-the-dark star/planet with the sign says "Earth."
I think the large 42 came from a ticket...
The last clip was from...... I can't remember the comic.