Despite our  best efforts, our 16-week old ra terrier, "Snickers," eats some pretty weird stuff.   When we take him out in our backyard, he'll run a few yards away and begin sniffing around, then pick up a stick or leaf or even a dirt clod and start chewing on it.  Today, while at work, my son called and said that "Snickers" had eaten an ear plug.  It was one of those foam-type plug that you roll and stick in you ear.  My first thought that he will eventually pass it, or maybe regurgitate it, then I got worried that it might get stuck in his intestines.  He weighs about 14 lbs, so I began to doubt whether he could pass it or not.    Any advice? 

Thank you all, for the advice.  "Poo watch" makes sense.  The ear plug is orange, so it should be easy to spot.  DaisysMom asked if "Snickers" is a Decker.  No, he's a standard, "type A" rat terrier.  He's probably closer to 17-18 weeks rather than 16.  He does weigh 14 pounds though, we weighed him twice this week.  According to his breeder, his mother was about 20 lbs and his father was about 25 lbs. 

I'm not even sure one of those plugs could survive the stomach acid...I have those plugs here at work and they're fairly flimsy... just watch him for the next few days, but I think he'll be fine