Egg Cuber
Boil it, shell it and place the hard-boiled egg into the cuber. Then, place the upper plate over it and make screw it down so that the egg is squeezed into the square shape of the cuber’s compartment. Then place it in the fridge for about 10 minutes, and you’ve got a cubed egg. But if you think this is impressive, the next invention will make you feel like a real Hobbit.