I use the new version of the Incredibell that attaches by an O-ring. I think it goes for about $12 US. That is easy to put wherever it works best (even on a stem) and move between bikes. It was more convenient to get the brass version which has much longer sustain while still sounding like a bike bell.
Yelling “bicycle passing on your left” is the backup plan for those who don’t hear the bell. This time of year is pretty easy because there are so few people out in the dreary cold on the muddy trails. It’s awesome! 😊
Otto