Remember not everything about The Craft has to be serious. You can honor a deity or do a spell in a fun way that brings joy and laughter to your heart, mind, and spirit. Young children usually learn things better if it is enjoyable to them rather than boring adult stuff. Take your child to the woods and have them look for a stick that they feel is special for them than take it home and do a ritual for their age level to turn the stick into their first wand. If the child feels it should be decorated offer them glue glitter stickers stones or even paint. To cast the circle the child could skip or dance around to form it or even do a small train where the adult leads the child behind them by holding hands. A suggestion is to do the consecration ritual as a chant, this way the child gets to sing and maybe play a drum (a plastic bowl and wooden spoon work great for a child). When it comes time to do the feasting have juice and graham crackers, remember to have them take some outside to make an offering of thanks. When your ritual is through or during it allow the child to dance or skip around the circle to open it. Keep the ritual light, entraining, and fun and I can almost guarantee the child will remember getting their first wand forever. You may also want to help the child, depending on age to sew a bag to keep their wand in, especially if it has glitter on it.