The 'Okashina Tamago Mawashite Mawashite Marugoto Purin' by Takara Tomy is quite a mouthful, but it's essentially a dessert maker toy that will turn the contents of a single egg into a custard that you can crack open and eat.
To work the toy, a single egg must be placed inside the spinner and cranked for about two whole minutes. After this, it's as simple as boiling the egg for about 30 minutes, and its entire contents will have become a custard-like consistency that can be spooned out of the shell. Since there is no actual baking required, there are some who are noting that the "pudding" is actually more like a steamed egg. Still, this makes a great way to prepare and serve an egg with a savory or sweet sauce.