PopYum 13oz Insulated Stainless Steel Kids’ Cups with Lid and Straw 2-Pack Purple Pink stackable sippy baby child toddler tumbler double wall vacuum leak proof is up for auction in Baby Products. The current bid is $2.83, 93% below the $37.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.