What do boys do in Japan during the summer? They collect and raise giant beetles, that’s what they do.
The pet shop near our house sells a huge range of stag beetles (kuwagata) and rhinoceros beetles (kabuto mushi), along with many products to care for them as pets. One especially rare speciman had a price of 10,000 yen (about a hundred American dollars). My son (after begging me into acquiescence) got these two, a male and female, for about ten dollars.