With orders of $25 or more, Amazon offers Prime members the Chinet 16-oz. Comfort Cup 50-Pack in Assorted Colors for $9.53. Clip the 10% off coupon to cut it to $8.57. With free shipping, that's $15 off list and the lowest price we could find.
Note: This item is part of Amazon's "add-on" program and can only be purchased with orders of $25 or more.