When I was little I used to "catch and release" skink all the time. Mum never let me keep them though. When I was really little and we lived in Vic, I used to share my banana with our resident blue tongue who lived near the clothes line. At primary school I caught a few brown tree snakes that the teachers took off me. It is good your little ones are interested in reptiles, I wish more kids were, but I think the look but don't touch is a good rule.