Walmart offers the Munchkin Miracle 360 10-oz. Sippy Cup 2-Pack in Pink/Orange for $8.99. Opt for in-store pickup to cut it to $8.46. (Amazon charges the same with free Prime shipping.) That's tied with our mention from a week ago as the lowest price we've seen. (It's the best deal now by $2.) Each cup is BPA-free and has a 360° drinking edge that seals after the child stops drinking.