xunicute Sippy Straw Cup Nipples for Philips Avent Natural Baby Bottles, My Grippy Spout Sippy Cup and Natural Trainer Sippy Cup, Soft 100% Silicone Sippy Spout Nipples, 8m+, 4 Count is up for auction in Baby Products. The current bid is $2.00, 85% below the $12.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.