THE CLAIM: After polishing your chompers, this tool (made of recycled No. 5 polypropylene plastic sourced from yogurt cups, plus other pre-and post-consumer materials, $3; preserveproducts.com) can be recycled itself. Nab a free shipping label at mygimme5.com, pop it in the pouch the brush was sold in, mail it back, and—voilà!—instant karma points.
OUR TAKE: The brush was comfortable to use, and mailing it back (two at a time) is easy. "The hard part is remembering not to throw out my toothbrush," says a tester.Read MoreLess