competition: Worst thing you found in your food

One time I started to open a bottle of sparkling water when I noticed something floating up from the bottom along with the bubbles. It was a cardboard flap from a package of earplugs, and obviously big enough for me to read that it was an earplug box. Luckily I hadn't broken the seal on the cap, so I sent it in and got coupons for free drinks.