At the home of Lexi and Stuart Reimann at Tanunda, three young children eagerly answer the door, a trio of upturned faces, abuzz with curiosity and excitement.
The youngest, Alby, at three years old, immediately wants to show off his toy chainsaw and his trucks.
"Can you read me a story?" he asks enthusiastically, when he's done presenting his special things.
His six-year-old sisters, twins Elk...