Jump Starter for cars, $20
Amazon Link: https://www.amazon.com/BLACK-DECKER-JUS500B-500-Amp-Starter/dp/B01CVV6YB4/ref=sr_1_2?ie=UTF8&qid=1466312363&sr=8-2&keywords=jump+starter+JUS500B

Jawbone UP, $10
Amazon Link: https://www.amazon.com/UP-Jawbone-Medium-Discontinued-Manufacturer/dp/B00A17IAO0
Size: small (5.5 - 6 inch).
Can only be connected to Android phones, not Iphones.
It was bought in 2014. Good condition, almost same as new.