Quantity   Component name
1 × ATtiny45 Arduino's smaller, cheaper baby brother, We still love you 328!
1 × Raspberry Pi (and all necessary peripherals) The poster child of the maker movement, and a potential pirate radio.
1 × TEA 5767 Radio Module It's pretty cheap and more importantly, very small.
1 × ISP compatible Arduino (ATmega 328 or higher) The ATtiny doesn't come with a USB programming port; you'll have to use a breadboard and an Arduino to program it.
1 × Speaker or Piezo Small, but powerful so you can actually hear it.
1 × LED Makes the clip flash so you can find it easier. Shiny! This also functions as the diode for the crystal radio.
1 × Insulated Solid Core Hookup Wire To solder connections on the PCB.
1 × Binder Clip Does this need description? Modern offices wouldn't run without them.
1 × Ready-Made PCB We used one with a standard breadboard-style layout. It doesn't matter as long as all the connections remain the same.
1 × Double Sided Foam Tape (optional) The kind that comes with the stuff you peel off on the front. This is optional.
1 × Aluminium Soda Can To cut apart for the shiny casing.
1 × Battery 2 AA batteries