The other day while I was getting ready, my daughter entertained herself with toys. She came running back to my bedroom and handed my husband a rubber black ring. Seeing she had something in her mouth, he asked her to open it. When she did, there were two more black rubber rings the size of pennies on top of her tongue. Freaked out, he fished them out and asked her to put them back where she got them. We followed her to the culprit — a double-decker toy bus. The wheels are lined with rubber rings, which apparently come off easily for a 21 month old. Horrified by the vehicle's design, I immediately put it out of her reach.
Before I bought the toy, I checked for age restrictions and even inspected it for possible broken parts. I learned a valuable lesson — check the wheels to make sure all of their components are secure.