Check out some cool ways to alternatively power gadgets you probably use everyday. By using wind, solar, and hand power instead of batteries and electricity, these devices make up for their life cycle’s carbon footprint with regular use.

Bedol

This $16 clock from Bedol requires nothing but tap water and a splash of lemon juice to keep time for up to eight weeks without refreshing.

Real Goods

Water power can also be used in calculators, as this $26 model from Real Goods shows.

Advanced Mart

Hand-powered flashlights have long been popular because they can be used without batteries or electricity – especially helpful when camping or during a power outage. This $11.95 model from Advanced Mart can run for up to 25 minutes with only one minute of hand charging.

Amazon

Perhaps the most rewarding hand-powered gadget out there, this mixer makes milkshakes and smoothies with a few quick cranks. Available for $7.95 from Amazon.

Amazon

For the eco-conscious coffee connoisseur, there’s the Handpresso espresso maker that’s powered completely by hand. It sells for $89.74 from Amazon.

By Elizabeth Wolfe