The GHYAC were found in the attic of the College Club of Seattle about a year ago along with felts and playing cards. If memory serves, there are 6 chips total - 2 reds, 2 yellows, 1 white and 1 black. Yellows and reds are plentiful, blacks and whites, not so much. I believe I have a couple extra sets tucked away somewhere.
I haven't done any research on the chips but the best guess from the NW chip crowd is that it stands for "Gig Harbor Youth Athletic Club".
Pete