Tenergy via Amazon offers its Tenergy Odev Tomo 2-in-1 Transformable DIY Programmable Robot Kit for $99.99. Coupon code "CX7Y7ZT8" cuts that to $69.99. With free shipping, that's $10 less than our June mention, $30 off, and the lowest price we could find. This STEM kit can be built as a tricycle or dicycle and features Bluetooth 4.0, tracking sensor, accelerometer, and gyroscope. Six AA batteries are required, not included. Deal ends December 8.