A three year old - especially if she is your own daughter - is definitely sweet. What else could a parent say? However, if it comes to particular activities, the explosive mixture of will, stubbornness and underdeveloped motor skills can be a true nightmare. Take baking, and especially cracking the eggs, as an example. Every kid wants to do it, none is good at it, and you end up with a lot of eggshell in the batter. What is needed is a way for three year olds to crack eggs in an experiential way. In a student project on experience design, Luisa Dursun and Annabell Meierkordt, devised a tool – Eggsplat – which is supposed to make cracking eggs fun.