If your looking for the US made Red Solo Cup you can find it in almost every grocery retail store you walk into. Solo also makes Plastic To Go Server Containers with a lid; we found them in the Walmart Grocery Department. You may wish to purchase the Environmental Friendly Plastic Cups and Plates under the Bare label.
Note: the (Plant-Based Renewable) Sugarcane Compostable Plates, Bowls and Take Out Containers are made in China.
Solo is now owned by Dart Container Corporation. They manufacture a Compostable Paper Plate or a Plastic Cup with a convenient side grip feature which will help avoid spillage and supplement the grasp of those with handicapped hand function.
Note: The Side Grip Cups come in various colors, they even have pink for Breast Cancer Awareness.