May is a great month to learn how to make rosaries in honor of Our Lady. Grade schoolers can often learn to make the knots between decades on simple cord rosaries (they might need a little help on the end knots near the crucifix and the centerpiece) and even the little ones enjoy counting the beads and stringing them for you. Supplies are very inexpensive and once in awhile we've managed to set up a rosary-making day with family or friends. My blind sister-in-law loves making them!
Our Lady's Rosary Makers' website (same company my mom bought supplies from when I was a kid) offers materials, instructions and suggestions for places to send the rosaries.