you cant pour from an empty cup

The Grinch AOP 15 Oz. Glass Cup with Straw and Lid

GROSCHE Cyprus Double Walled Glass mug for Coffee or tea, glass insulated cup, 16 fl oz. Capacity

15 fl oz Do Not Disturb (Croissant Coffee) Mug

Red Cup Living 24Oz Tumbler Cup with Lid & Straw, Insulated Reusable Plastic Cup for Hot & Cold Drinks, Coffee Tumbler, Summer Party Cup

Amici Home Large 20 Oz. Ceramic Mug with Handle, “Death Before Decaf” Quote Cup for Coffee Drinkers, Novelty Drinkware for Kitchen Coffee Bar Cart

CHEMEX Hand Blown Glass Coffee Mug – 10 oz Borosilicate Mug – Crescent Handle Coffee & Tea Cup

Dicksons Perhaps Moment We've Been Created White 11 ounce Ceramic Novelty Coffee Mug Cup

Crazy Dog You Can Count On Me Mug Funny Sarcasitc Calculator Graphic Coffee Cup - 11oz

JoyJolt Aroma Double Walled Insulated Glasses - Set of 4 Double Wall Coffee Tea Glass Mugs - 13.5 oz

Haven Fluted Stackable Double Wall Glass Mugs - 13.5 oz - Set of 2

Halloween 14 oz Stoneware Coffee Mug - Sweet Water Decor

Kit Kemp by Spode 12oz Alphabet Mug, Unique Stylish Monogram, Fine China, Dishwasher Safe, Personalized Initial, Fabulous Mug with Gift Box

Sweet Water Decor Ghosts Stoneware Mug - 14oz

Pinky Up Blake Tea Infuser Mug with Lid, 12 oz Glass Cup for Loose Leaf and Flowering Tea, Herbal Tea, Home Kitchen Gifts, Wellness Gifts for Women

ZWILLING Sorrento Plus 2-pc Double-Wall Glass Coffee Mug Set, Clear

Tag Hummingbird Earthenware Mug Multi 18 oz 4.04 x 4.04 x 4.01 in

Coffee Mugs Set of 4, 13oz Colorful Ceramic Cups with Speckled Design and Brown Rim, Stoneware Latte Tea Cocoa Mugs with Sturdy Handles

tag Emery Coffee Mug Green Multi Stoneware Everyday 16oz Dishwasher Safe

Savor Double Wall Insulated Glass Mugs - 13.5 oz - Set of 2

tag Evelyn Coffee Mug Pink Stoneware Everyday 16oz Dishwasher Safe

ZWILLING Sorrento Plus 2-pc Double-Wall Glass Latte Mug Set

Pinky Up Annette Ceramic Tea Mug, 12 oz

Chloe Cat Mug by Pinky Up

Sweet Water Decor Black Pumpkin Figurine Mug - 19oz

Portmeirion Sophie Conran Floret Mug, Textured Coffee Cup with Balanced Grip - 14 oz Stoneware Coffee & Tea Mug, Dishwasher & Microwave Safe

Elama Henryi 16 Piece Porcelain Dinnerware Set in White

Black Ghost 12 oz Halloween Mug - Sweet Water Decor

Personalization Mall Hocus Pocus Halloween Coffee Mug

ZWILLING Sorrento Plus 2-pc Double-Wall Glass Double Espresso Mug Set

Sweet Water Decor Miss to Mrs.Ceramic Coffee Mug -11oz

Elama Honeycomb 6 Piece 15 Ounce Mug Set in White

ZWILLING Sorrento Plus 4-pc Double Wall Glass Coffee Mugs, Insulated Coffee Mug, Clear