you cant pour from an empty cup

Silver Buffalo Disney Lilo & Stitch Travel Tumbler with Slide Close Lid | Holds 20 Ounces

NHL San Jose Sharks 24oz New Onyx Skinny Tumbler with Straw

NCAA Texas Longhorns Tailgater Tumbler - 22oz: Stainless Steel, Acrylic Lid

Silver Buffalo Sanrio Hello Kitty Pastel Rainbow Carnival Cup With Lid | Holds 20 Ounces

Silver Buffalo South Park Characters Color-Changing Plastic Tumbler | Holds 24 Ounces

NBA Charlotte Hornets 10oz Onyx Wine Tumbler

Silver Buffalo Harry Potter Hogwarts Crest Carnival Cup With Lid And Straw | Holds 20 Ounces

NCAA Boise State Broncos 24oz First String Classic Tumbler: BPA-Free Plastic Drinkware

Zeus & Ruta 24 oz Double-Walled Insulated Stainless Steel Tumbler, Travel Mug with Handle, Straw, Tea Infuser & 2-in-1 Lid

Colombia 2026 Soccer Cup Global Championship 20oz Tumbler With Lid and Stainless Steel Straw, Fans Football Gift Cup (NON-CUSTOM)| OrnamentallyYou

NFL Detroit Lions 24oz Skinny Tumbler with Straw

Silver Buffalo Sanrio Hello Kitty and Friends Mushroom Crew Carnival Cup | Holds 20 Ounces

Dragon Glassware x Wicked 24 oz Vacuum Insulated Tumbler with Lid & Straws Set of 2 - Wicked For Good

Star Wars Red Squadron Starfighter Corps Stainless Steel Tumbler w/Lid

NCAA Maryland Terrapins Tailgater Tumbler - 22oz: Stainless Steel, Acrylic Lid

Coquette Pink Teacher 20oz Tumbler With Lid and Stainless Steel Straw, Retro School Brushstrokes Gift Cup (NON-CUSTOM) | OrnamentallyYou

NCAA NC State Wolfpack Sand Powder Coat Tumbler - 20oz: Insulated Stainless Steel

Silver Buffalo Sanrio Hello Kitty Shine Bright Carnival Cup With Lid | Holds 20 Ounces

Star Wars Empire Action Scene Stainless Steel Tumbler w/Lid

NCAA Arizona Wildcats 20oz Mascot Stainless Steel Tumbler: Portable Drinkware, Lidded

MLB Detroit Tigers 24oz Skinny Tumbler with Straw

Star Wars Retro Movie Poster Stainless Steel Tumbler w/Lid