Mouth/Throat - usually the animal will be in severe distress - panicking to remove the object by pawing at the mouth/ retching and drooling. If breathing is affected then try to clear the object but avoid getting bitten. It may be necessary to again anaesthetise your pet to safely remove the article.
Swallowed - if significant, the first sign is usually persistent vomiting. If your pet is generally unwell, then this might indicate a perforation of the bowl, and immediate attention should be sought.
Foot - Thorns and grass seeds are common foreign bodies between the pads, particularly of dogs. These usually require removal under sedation or anesthesia as they can break off if an attempt is made to remove in a conscious patient.