Wyldkat,
I wish I could help you, but I'm struggling with answering my DS6's question about whether, in a baptism, the water itself actually baptizes you! The things these kids think about and need help conceptualizing! They are just amazing little creatures, aren't they?!
Well in all technicality you could baptise with juice. It's the symbolism that matters. Water specifically is connected with cleansing and baptism cleanses you of your sins and makes you pure and connected with God (of whatever belief) since God is a part of everything. You could explain symbolism and go from there? (I'm a minister in case that matters)
