1 x ATmega328 PU LINK eBay
1 x NRF24 LINK eBay
2 joysitck LINK eBay
2 x slide switch: LINK eBay
16MHz crystal: LINK eBay
3.3V voltage regulator: LINK eBay
5V voltage regulator: LINK eBay
9V battery: LINK eBay
0805 capacitors: LINK eBay
0805 Resistors: LINK eBay
Wires LINK eBay
Male PCB pins LINK eBay
Wire, soldering iron, solder, etc...