This is actually a good time to get the bell...I used one that was a Christmas ornament. I tied a cute ribbon from the doorknob to the bell. Then a few weeks ago I saw a bell door hanger at Dollar Tree. It has 5 bells on it and fit right over the doorknob. I think I am going to keep it there because it makes the bells a little louder. We have 3 kids from 3-10 so sometimes you gotta be loud around here to get what you need.