Actually concider yourself lucky that is was Bob (a dog) that ate the foreign object. You wouldn't be able to get Ebby to throw up that easily (a cat) trust me, I've had to try it. Cats just do not like to have to throw up if they can get away without it. Dosed Sterling 3 times with the peroxide, but he would NOT cough up the toy he swallowed!
So exccept for the clean up (YUK) glad everything else went well.