4 ball cup stack

Dr. Brown's 10 oz Milestones Straw to 360° Cup Set, with Interchangeable Silicone Straw - Aqua Blue - 2pk

Re-Play 10 fl oz Grow With Me Cup - Kelly Green: BPA-Free, Non-Slip Grip, Leakproof, Includes Straw & 2 Lids

Owala 40oz Stainless Steel Straw Tumbler - Tangy Tango

Re-Play 10 fl oz Grow With Me Cup - Amethyst: BPA-Free, Includes Straw and 2 Lids, 50% Recycled Plastic

Reduce 24 oz Halo Stainless Steel Straw Tumbler Space Babe

Simple Modern Trek 40oz Stainless Steel Lidded Tumbler Almond Birch: Dishwasher-Safe Portable Drinkware for Cold Beverages

Step2 My First Christmas Tree: Stacking & Sorting Educational Toy with Storage Capability, 12 Pieces

Stanley IceFlow Aerolight Fast Flow Water Bottle

Re-Play 10 fl oz Grow With Me Cup - Orange: BPA-Free, Includes Straw & 2 Lids, Recycled Materials

Re-Play 10 fl oz Grow With Me Cup - Navy: Non-Slip Grip, BPA-Free, Leakproof, Portable Drinkware