Build a digital stompbox
Basically a stompbox is nothing more than a wooden box with a microphone in it on which the musical performer stamps the rhythm with her or his foot to produce a sound similar to a bass drum. But today, in the connected-objects world, it wouldn’t be nothing, nothing without an ESP32 or I2C-OLED display. Electronics engineers make musicians happy, 'cause they make them toys. You too can make a musician happy by building this toy.