Quantity   Component name
1 × Female to female jumper wires https://www.adafruit.com/product/266
6 × Arcade buttons http://www.ebay.com/itm/6-Blue-30mm-Arcade-Push-Buttons-Can-replace-Sanwa-OBSF-30-USA-Free-Shipping-/252458140606?hash=item3ac7ad83be:g:HFUAAOSwyDxXhEAt
1 × Joystick http://www.ebay.com/itm/Sanwa-Original-Japan-Arcade-Joystick-JLF-TP-8YT-with-Green-Ball-Top-stick-mod-/181514275628?hash=item2a43180b2c
1 × Electronics box (optional housing) http://www.ebay.com/itm/ABS-Black-Plastic-Project-Box-2-62-x-7-44-x-4-44-PB114E-/161207362467?hash=item2588b523a3
4 × 4mm screw and bolt
1 × Raspberry Pi 3
1 × Mounting tape http://www.homedepot.com/p/3M-Scotch-1-in-x-1-66-yds-Outdoor-Mounting-Tape-411DC-SF/100575385