Quantity   Component name
1 × Nokia 5110 LCD - $2.75 http://www.ebay.com/itm/PCB-LCD-84X48-84-48-Nokia-5110-Module-with-blue-backlight-adapter-High-quality-/331210888303?ssPageName=ADME:L:OC:US:3160
1 × 4x4 16 key Numeric keypad - $4.35 http://www.dx.com/p/diy-4-x-4-16-key-numeric-keypad-black-149608
1 × Arduino Nano - $3.69 http://www.ebay.com/itm/271545629048?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
1 × 1K Resistor for the LCD light
1 × PCB remnant http://www.icstation.com/product_info.php?products_id=1330#.VE77NPnF9Bk