item	SKU	price	qty	subtotal	source
steel rod collar	 6436K9	$5.02 	1		 mcmaster.com 
precision microswitch	 7193K2	$6.10 	1		 mcmaster.com 
phone cord	 5703T711	$4.20 	1		 mcmaster.com
solenoid	 9719K24	$48.64 	1		 mcmaster.com

optical quadrature encoders	 AEDS-9641-P10	$6.30 	2		 mouser.com
quadrature decoder	 630-HCTL-2022	$9.68 	2		 mouser.com

arduino uno	 DEV-09950	$29.95 	1		 sparkfun.com
serial LCD for arduino	 LCD-10097	$24.95 	1		 sparkfun.com
wall charger	 TOL-10214	$3.95 	1		 sparkfun.com
thumb slide joysticks	 COM-09426	$3.50 	2		 sparkfun.com
dc barrell jack adapters	 PRT-10287	$2.95 	2		sparkfun.com
thumb joystick 	COM-09032	$3.95 	1		 sparkfun.com
joystick shield pcb	 DEV-09490	$3 	1		 sparkfun.com
momentary switches	 COM-09190	$0.50 	4		 sparkfun.com
mini push button	 COM-00097	$0.35 	1		 sparkfun.com
6 pin header	 PRT-09280	$0.50 	4		 sparkfun.com
8 pin header	 PRT-09279	$0.50 	4		 sparkfun.com
mini button pad	 COM-08996	$4.95 	1		 sparkfun.com
mini button pad	 PCB COM-08963	$1.95 	1		 sparkfun.com

encoder strips	 G15602	$0.99 	5		 electronics goldmine 


phone jack	 H11393-ND	$6.71 	1		 digikey.com
enclosure	 HM1074-ND	$5.76 	1		 digikey.com
power socket	 HR173-ND	$2.28 	1		 digikey.com
power plug	 HR1287-ND	$2.83 	1		 digikey.com
double banana plug	 501-1071-ND	$2.87 	1		 digikey.com
double banana jack	 501-1124-ND	$4.25 	1		 digikey.com
24V 1.7A power supply	 T1082-P5P-ND	$21.68 	1		 digikey.com
wafer SSR	 CC1742-ND	$16.35 	1		 digikey.com
voltage reg	 LM7805ACT-ND	$0.60 	1		 digikey.com

Everbilt Gate Latch Zinc Plated Finish	 ???	$4 	1		 homedepot.com