I'm teaching my 5 year old daughter basic chess. While she's kind of interested, I feel the material, such as how the pieces move, mate in 1 puzzles, basic KQ and KR checkmates, etc, is a bit boring to her.
This answer on another question presented an interesting variant call Rescue Snow White. It combines piece move training with some fun story.
Can someone can suggest other variants similar to Rescue Snow White that motivate children to learn chess? Being fun on the chess board is the main requirement, while the training value is an optional bonus.