I started a neighborhood monthly poker night several years ago, and surprisingly, the group has been going strong ever since. I just got a diamond drag bit, and I decided to make commemorative poker chips for the guys. The key here, for me, was to make them the same size as real poker chips. I am very impressed with the amount of detail I was able to get with this diamond bit.
Here is a run of 6 poker chips on 1/8" blue acrylic:
A quick profile with a O-flute plastic cutting bit (I love this bit):
And the final results when compared to real poker chips: