![Left water in a Styrofoam cup and forgot about it for a few days. I didn't know until now not to do that. Threw it away right after taking the pic. : Left water in a Styrofoam cup and forgot about it for a few days. I didn't know until now not to do that. Threw it away right after taking the pic. :](https://i.redd.it/4hoydtqvta1a1.jpg)
Left water in a Styrofoam cup and forgot about it for a few days. I didn't know until now not to do that. Threw it away right after taking the pic. :
![Is there mold hiding in YOUR baby's sippy cup? Furious father reveals grey goop hiding in the leak proof cup causing alarm among parents everywhere | Daily Mail Online Is there mold hiding in YOUR baby's sippy cup? Furious father reveals grey goop hiding in the leak proof cup causing alarm among parents everywhere | Daily Mail Online](https://i.dailymail.co.uk/i/pix/2016/02/25/04/31892B3500000578-0-image-a-13_1456374776243.jpg)
Is there mold hiding in YOUR baby's sippy cup? Furious father reveals grey goop hiding in the leak proof cup causing alarm among parents everywhere | Daily Mail Online
![Tommee Tippee Sippy manufacturer recalls 3m children cups over mould risk | The Independent | The Independent Tommee Tippee Sippy manufacturer recalls 3m children cups over mould risk | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2016/05/27/16/cupscupsedit.jpg?width=1200&height=1200&fit=crop)