I don't have many, and have some I think are Native American casino chips, but don't know. My favorite is one of those that I assume, but don't know:

Here is kind of a cheat. I don't have that many, so I think a token is ok. I really like this one:

The next three all have nice connotations of playing in the poker rooms. The first is from my second poker tournament, my only at the Mohegan Sun, and a very nice finish. Well, I didn't get this chip that day, but I used chips just like it:

I also like these two, from many fun hours of poker:

Michael Siskin