A 5 volt, 2 amp power supply for longer LED strips up to around 30 LEDs
An audio board that plays back audio files when triggered
If you would like to make something with the ESP32 that's a little more permanent, this "ElectroCookie" board is halfway between a breadboard and making your own circuit board
To create a socket on this board for an ESP32 (or any circuit board), a kit like this might be the least expensive way
To control the speed of AC motors you need a "variac"