Thanks, Tommy! I placed a Make an Offer bid, had it accepted, and the coupon code (PREGAME15) still worked on top of that.
Ended up paying $65.35 including shipping, for the 99 used chips below. It looks like the seller still gets the full amount of the Offer, and
eBay covers the coupon discount.
Wow, I remember seeing those chips about 6 months ago. They looked really worn, even some of the top hats aren't clear.