Did you ever wonder what to do with a broken rosary? One idea is to cut it down into 5 one-decade rosaries. If you have a short attention span, or teach CCD, a one decade rosary is perfect. Just using one decade can be less intimidating to a lot of people ... kids especially.
Once the one decade of the rosary is completed, you can also use the short string of beads to thank God for one thing on each bead (a nice sunny day, a good grade in Math class, a loyal friend, etc...).
Give thanks to the LORD, for He is good. ~ Psalm 118:1a