Because sippy cups are available in a variety of styles, such as stainless steel or plastic, prices will vary depending on material, size, and additional features. For example, simple plastic sippy cups, such as The First Years Take & Toss Spill-Proof Sippy Cups, will likely cost less than stainless steel sippy cups, like the Munchkin Miracle Stainless Steel 360 Sippy Cup. Additionally, larger bottles may cost more due to more material being used, or sippy cups with additional features, like handles or fun patterns, may also up the cost. Overall, the prices of sippy cups range from an average of $10 to $25.