Love Ben Harper and Jack Johnson’s music and their environmental activism, too? Now you can wear your feelings on your sleeve — by buying a bracelet made with one of the musicians’ used guitar strings — while supporting an eco-charity too.

The bracelets are made by Wear Your Music, which nabs old guitar strings from musicians, adds on a 100 percent recycled silver clasp, and sells them — sending 100 percent of the profits to a charity of the artist’s choice. In Ben Harper’s case, that charity’s Living Lands & Waters, an environmental nonprofit that works to clean up American rivers. Jack Johnson chose 1% for the Planet.

For $150, either of the musicians’ bracelets can be yours. Prices for the bracelets range from $75 - $500. Order one, and it’ll arrive in a recycled DVD case, along with a certificate of authenticity.

Keep in mind that the 100-percent donation of the profits to charities only applies to the artists’ bracelets, not the “fashion bracelets” also sold on the site. I tend to prefer percentage of sales donations because percentage of profit donations are so untransparent (meaning there’s no way for you to know what portion of the $150 you spend will actually go to charity. In fact, if the company doesn’t turn a profit, no money would go to charity). Still, 100 percent of the profits seems like an impressive commitment.

Not sure whose bracelet to get? Here are the top 10 best green songs, as selected by By Alyssa Kropp, one of MNN’s student correspondents.

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