Quantity   Component name
4 × High torque servo motors https://www.amazon.com/LewanSoul-LD-20MG-Standard-Digital-Aluminium/dp/B073F92G2S/ref=sr_1_5?ie=UTF8&qid=1519591645&sr=8-5&keywords=servo+motor&dpID=41Um3gQkFJL&preST=_SY300_QL70_&dpSrc=srch
3 × 350 farad capacitor https://www.digikey.com/product-detail/en/maxwell-technologies-inc/BCAP0350-E270-T11/1182-1016-ND/3079280
8 × Snowmobile bearings https://www.amazon.com/Snowmobile-Bearing-6004-2RS-20x42x12-Bearings/dp/B002BBGPCS/ref=sr_1_1?ie=UTF8&qid=1519591731&sr=8-1&keywords=bearing+snowmobile&dpID=51A0hnC8SRL&preST=_SX342_QL70_&dpSrc=srch
4 × Aluminum Servo Horns https://www.amazon.com/gp/product/B00NOGMK3M/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
8 × High Torque 1/4 scale servo motors https://www.pololu.com/product/3429
8 × Metal Servo Horn for 1/4 scale servo https://www.pololu.com/product/3431
1 × Google AIY Vision Kit available at Target stores or Target.com