There is a good range of "3-in-1" sets that are good at starting kids off building the same bricks into multiple models: https://www.lego.com/en-gb/themes/creat

There is a good range of "3-in-1" sets that are good at starting kids off building the same bricks into multiple models: https://www.lego.com/en-gb/themes/creator-3-in-1 https://www.lego.com/en-gb/themes/creator-3-in-1 Once they've got a few sets like that, the rebuilding into unspecified stuff seems to come naturally (at least with the cousins and friends kids I've played with).