I have a little dachshund puppy. When he was six months he swallowed a bobbin. He started to vomit and would not quit so I took him to the vet. They did an x-ray and it showed what the vet said was a "round object". They did an endoscopy and pulled out the object and turned out to be a sewing machine bobbin. I was so embarrassed. Needless to say I no longer allow him to roam around in my sewing room