A Multifunctional Find: OCOOPA Rechargeable Hand Warmers These pocket-size OCOOPA Rechargeable Hand Warmers ($27) have three different temperature levels to keep your hands warm wherever you go. These hand warmers double as a portable power bank, so you can keep your devices charged at all times. It comes in a variety of colours including pink, black, teal, and orange. Image Source: amazon.com OCOOPA Rechargeable Hand Warmers $27 from amazon.com Buy Now