Drum with your child, either just with your drum or keeping a beat to recorded music. Once they can keep a simple beat they should be encouraged to bring their drum to a Pagan gathering. There will probably be rituals where they can drum. The experience of being part of a group of drummers contributing to a ritual is overpowering. Children have few opportunities to take part in rituals in such an active way.
Inexpensive drums are available in music and toy stores.
There are many activities sponsored by non-Pagans that can be part of a Pagan education. Summer camps, nature and science centers, and scouting all teach knowledge of and respect for nature. Art museums sometimes give workshops in skills such as mask making. Community centers and ethnic societies give lessons in traditional dance and music. Although the most important part of your child's religious education will take place in informal or ritual contexts, more formal schooling can be integrated into a Pagan education program.