Quantity   Component name
1 × Chime rods and hammer from an old clock
1 × Raspberry Pi 3 but it should work with any RPi
5 × Small DC Linear Solenoid http://www.ebay.com/itm/311458822410?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
1 × DC-DC Adjustable Step-up Power Converter Module Output 5V-35V MAX 3A http://www.ebay.com/itm/400550996307?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
1 × 5V 5A power supply solenoids can consume a lot
1 × 5V 2A power supply to maker RPi3 happy