File:El mundo físico, 1882 "Máquina de inducción de Ruhmkorff". (4074916266).jpg - Wikimedia Commons
Ruhmkorff Induktor with elektrolytic Interrupter - YouTube
I've made an oscillator only out of household materials,you just plug it into an AC power supply(Ruhmkorff Coil in my case),the capacitor is also homemade and can withstand around 100V or so.Whatcha