happy turn
An elliptical, well-powdered rice cracker snack food made by Kameda Seika Co. Ltd.
The powder, called "Happy Powder", is sweet, like forbidden fruit. And it is often jokingly considered as a legal intoxicant.
Its mascot characters are ハピたん (Hapy-tan) and ハッピー王国のターン王子 (Prince Turn of the Happy Kingdom).