A friend of mine referred me to this somewhat long list of DS9 trivia on the imdb.com website. Many of these I already knew about, but there were some interesting surprises in the mix.
http://www.imdb.com/title/tt0106145/trivia
One example would be the Buck Bokai's baseball card, the collectable featured on Sisko's desk, had actor Keone Young on the front, and model maker Gregory Jein on the back. The pair bore an uncanny resemblance to each other.
Which I didn't know, surprising since I have a reproduction of that card in my collection, and have looked at both the front and back many times, and never noticed this.
Take a look.

http://www.imdb.com/title/tt0106145/trivia
One example would be the Buck Bokai's baseball card, the collectable featured on Sisko's desk, had actor Keone Young on the front, and model maker Gregory Jein on the back. The pair bore an uncanny resemblance to each other.
Which I didn't know, surprising since I have a reproduction of that card in my collection, and have looked at both the front and back many times, and never noticed this.
Take a look.
