I finally ordered a new wristband for my Garmin, as my original one was falling apart (as documented here: Ballad of My Jacked-Up Garmin). I got it from Amazon.com for about $13.
Thanks so much to Texas Runner Girl for tipping me off. I really had no idea I could buy a replacement band.
It came in yesterday and my husband figured it out for me.
It almost feels like having a brand new Garmin!! Maybe buying that Forerunner 10 can wait even longer now. I’m so happy with the new wristband!